# Al–Ti system

> Al–Ti system: 365 accepted literature values (invariant reaction 160, phase transition 136, formation 49, phase equilibrium 18) and 5 calculated phase diagram(s) from ORCHID, each value with evidence class, source, page and quote.

HTML: https://data.orchid-project.org/systems/AL-TI.html · Markdown: https://data.orchid-project.org/systems/AL-TI.md

365 accepted literature values from 5 paper(s) (experimental 184, model 138, DFT 20, unspecified 23); 5 calculated phase diagram(s). 13 further extracted value(s) not accepted by the reader-agreement checks are only in the JSON/CSV.

Data: [JSON](https://data.orchid-project.org/literature/systems/AL-TI.json) · [CSV](https://data.orchid-project.org/systems/AL-TI.csv) · [interactive explorer](https://orchid-project.org/data-explorer/#AL-TI) · [interactive phase diagram](https://orchid-project.org/phase-diagrams/#AL-TI/AlTi-00Ohn.json) · [phases (18)](https://data.orchid-project.org/phases/pages/AL-TI.html) · [papers (bibliography)](https://data.orchid-project.org/bibliography/pages/systems/AL-TI.html) · [Markdown](https://data.orchid-project.org/systems/AL-TI.md)

Table: Accepted values by evidence class

| Evidence class | Values |
|---|---:|
| experimental | 184 |
| model | 138 |
| DFT | 20 |
| unspecified | 23 |

Table: Accepted values by property group

| Property group | Values |
|---|---:|
| invariant reaction | 160 |
| phase transition | 136 |
| phase equilibrium | 18 |
| formation | 49 |
| activity / EMF / Gibbs energy | 2 |

## Calculated phase diagrams

Binary phase diagrams calculated with pycalphad 0.11.2 from the SGTE binary collection (Hallstedt 2025, CC BY 4.0). Evidence class: model.

Table: Assessments with a calculated phase diagram

| TDB file | Assessment | SHA-256 | Links |
|---|---|---|---|
| AlTi-00Ohn.tdb | I. Ohnuma, Y. Fujita, H. Mitsui, K. Ishikawa, R. Kainuma, K. Ishida, Acta Mater., 48, 3113-23(2000). [doi:10.1016/S1359-6454(00)00118-X](https://doi.org/10.1016/S1359-6454%2800%2900118-X) | `f6830a89b441de8eecaf5220a38e09983544e90675750730adc7f7341098581a` | [viewer](https://orchid-project.org/phase-diagrams/#AL-TI/AlTi-00Ohn.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlTi-00Ohn.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlTi-00Ohn.json) |
| AlTi-08Wit.tdb | V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, T.Ya. Velikanova, J. Alloys Compd., 465, 64-77(2008). [doi:10.1016/j.jallcom.2007.10.061](https://doi.org/10.1016/j.jallcom.2007.10.061) | `9b70a4ac247c561e0bc019bc100741b362c6a32f05ded075fd78c73e2ec02fad` | [viewer](https://orchid-project.org/phase-diagrams/#AL-TI/AlTi-08Wit.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlTi-08Wit.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlTi-08Wit.json) |
| AlTi-24Lia.tdb | Z. Liang, U. Kattner, K. Choudharry, F. Tavazza, C. Campbell, J. Phase Equilib. Diffus., 45, 732-56(2024). [doi:10.1007/s11669-024-01124-9](https://doi.org/10.1007/s11669-024-01124-9) | `57bd0014ed6335b550eb14e15aa5ab658ac5e2f810bd46b8e327ce4170f8c71b` | [viewer](https://orchid-project.org/phase-diagrams/#AL-TI/AlTi-24Lia.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlTi-24Lia.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlTi-24Lia.json) |
| AlTi-92Kat.tdb | U.R. Kattner, J.-C. Lin, Y.A. Chang, Metall. Trans. A, 23A, 2081-90(1992). [doi:10.1007/BF02646001](https://doi.org/10.1007/BF02646001) | `e8aff28ebffc8f27ef9710237576b5d75b7ca50781cc95f178f89866f193222e` | [viewer](https://orchid-project.org/phase-diagrams/#AL-TI/AlTi-92Kat.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlTi-92Kat.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlTi-92Kat.json) |
| AlTi-98Sau-LB.tdb | N. Saunders, COST 507, Final report round 2, 1998. | `20c2d77856efb995f37ca3ec5d75d5687d9c4a9bb77c6fedb20d7b15df7826cc` | [viewer](https://orchid-project.org/phase-diagrams/#AL-TI/AlTi-98Sau-LB.json) · [TDB](https://orchid-project.org/data/databases/sgte-binary/AlTi-98Sau-LB.tdb) · [JSON](https://data.orchid-project.org/phase-diagrams/sgte/AlTi-98Sau-LB.json) |

Table: Calculated three-phase invariants (model, mole fraction of the second component)

| TDB file | T (K) | Phases at the invariant |
|---|---:|---|
| AlTi-00Ohn.tdb | 1775.76 | LIQUID (x(Ti) 0.50012) + HCP_4SL (x(Ti) 0.53446) + B2_BCC (x(Ti) 0.55414) |
| AlTi-00Ohn.tdb | 1775.76 | LIQUID (x(Ti) 0.50012) + HCP_4SL (x(Ti) 0.53446) + BCC_A2 (x(Ti) 0.55414) |
| AlTi-00Ohn.tdb | 1775.76 | LIQUID (x(Ti) 0.50012) + HCP_A3 (x(Ti) 0.53446) + B2_BCC (x(Ti) 0.55414) |
| AlTi-00Ohn.tdb | 1744.39 | LIQUID (x(Ti) 0.43391) + FCC_4SL (x(Ti) 0.46055) + HCP_4SL (x(Ti) 0.48866) |
| AlTi-00Ohn.tdb | 1744.39 | LIQUID (x(Ti) 0.43391) + FCC_4SL (x(Ti) 0.46055) + HCP_4SL (x(Ti) 0.48866) |
| AlTi-00Ohn.tdb | 1744.39 | LIQUID (x(Ti) 0.43391) + FCC_4SL (x(Ti) 0.46055) + HCP_A3 (x(Ti) 0.48866) |
| AlTi-00Ohn.tdb | 1744.39 | LIQUID (x(Ti) 0.43391) + FCC_4SL (x(Ti) 0.46055) + HCP_A3 (x(Ti) 0.48866) |
| AlTi-00Ohn.tdb | 1739.03 | LIQUID (x(Ti) 0.4126) + FCC_4SL#2 (x(Ti) 0.43913) + FCC_4SL (x(Ti) 0.44544) |
| AlTi-00Ohn.tdb | 1739.03 | LIQUID (x(Ti) 0.4126) + FCC_4SL#2 (x(Ti) 0.43913) + FCC_4SL (x(Ti) 0.44544) |
| AlTi-00Ohn.tdb | 1681.92 | LIQUID (x(Ti) 0.27307) + AL5TI2 (x(Ti) 0.28571) + FCC_4SL (x(Ti) 0.35219) |
| AlTi-00Ohn.tdb | 1681.92 | LIQUID (x(Ti) 0.27276) + AL5TI2 (x(Ti) 0.28571) + FCC_4SL (x(Ti) 0.35202) |
| AlTi-00Ohn.tdb | 1665.81 | LIQUID (x(Ti) 0.21197) + AL3TI_D022 (x(Ti) 0.25) + AL5TI2 (x(Ti) 0.28571) |
| AlTi-00Ohn.tdb | 1665.81 | LIQUID (x(Ti) 0.21154) + AL3TI_D022 (x(Ti) 0.25) + AL5TI2 (x(Ti) 0.28571) |
| AlTi-00Ohn.tdb | 1459.75 | AL5TI2 (x(Ti) 0.28571) + AL2TI (x(Ti) 0.33333) + FCC_4SL (x(Ti) 0.39539) |
| AlTi-00Ohn.tdb | 1459.75 | AL5TI2 (x(Ti) 0.28571) + AL2TI (x(Ti) 0.33333) + FCC_4SL (x(Ti) 0.39537) |
| AlTi-00Ohn.tdb | 1459.75 | AL5TI2 (x(Ti) 0.28571) + AL2TI (x(Ti) 0.33333) + FCC_4SL (x(Ti) 0.39539) |
| AlTi-00Ohn.tdb | 1447.95 | AL2TI (x(Ti) 0.33333) + FCC_4SL (x(Ti) 0.39746) + FCC_4SL#2 (x(Ti) 0.41844) |
| AlTi-00Ohn.tdb | 1447.95 | AL2TI (x(Ti) 0.33333) + FCC_4SL#2 (x(Ti) 0.39746) + FCC_4SL (x(Ti) 0.41844) |
| AlTi-00Ohn.tdb | 1401.14 | FCC_4SL (x(Ti) 0.5283) + HCP_4SL (x(Ti) 0.597) + HCP_4SL#2 (x(Ti) 0.60647) |
| AlTi-00Ohn.tdb | 1401.14 | FCC_4SL (x(Ti) 0.5283) + HCP_A3 (x(Ti) 0.597) + HCP_4SL (x(Ti) 0.60647) |
| AlTi-00Ohn.tdb | 1401.14 | FCC_4SL (x(Ti) 0.5283) + HCP_A3 (x(Ti) 0.597) + HCP_4SL (x(Ti) 0.60647) |
| AlTi-00Ohn.tdb | 1256.37 | AL3TI_D022 (x(Ti) 0.25) + AL5TI2 (x(Ti) 0.28571) + AL2TI (x(Ti) 0.33333) |
| AlTi-00Ohn.tdb | 936.48 | LIQUID (x(Ti) 9.900e-4) + FCC_4SL (x(Ti) 0.00572) + AL3TI_D022 (x(Ti) 0.25) |
| AlTi-00Ohn.tdb | 936.48 | LIQUID (x(Ti) 9.700e-4) + FCC_4SL (x(Ti) 0.00559) + AL3TI_D022 (x(Ti) 0.25) |
| AlTi-00Ohn.tdb | 936.48 | LIQUID (x(Ti) 9.700e-4) + FCC_A1 (x(Ti) 0.00559) + AL3TI_D022 (x(Ti) 0.25) |
| AlTi-00Ohn.tdb | 933.47 | LIQUID (x(Ti) 0) + FCC_4SL (x(Ti) 0) + FCC_A1 (x(Ti) 0) |
| AlTi-00Ohn.tdb | 761.42 | AL3TI_D022 (x(Ti) 0.25) + AL2TI (x(Ti) 0.33333) + FCC_4SL (x(Ti) 0.4544) |
| AlTi-00Ohn.tdb | 761.42 | AL3TI_D022 (x(Ti) 0.25) + AL2TI (x(Ti) 0.33333) + FCC_4SL (x(Ti) 0.45441) |
| AlTi-08Wit.tdb | 1940.98 | BCC_A2 (x(Ti) 1) + B2_BCC (x(Ti) 1) + LIQUID (x(Ti) 1) |
| AlTi-08Wit.tdb | 1763.6 | LIQUID (x(Ti) 0.50621) + HCP_A3 (x(Ti) 0.53338) + BCC_A2 (x(Ti) 0.55424) |
| AlTi-08Wit.tdb | 1763.6 | LIQUID (x(Ti) 0.50621) + HCP_A3 (x(Ti) 0.53338) + B2_BCC (x(Ti) 0.55424) |
| AlTi-08Wit.tdb | 1728.79 | LIQUID (x(Ti) 0.45285) + ALTI_L10 (x(Ti) 0.45408) + HCP_A3 (x(Ti) 0.48486) |
| AlTi-08Wit.tdb | 1728.79 | LIQUID (x(Ti) 0.45285) + ALTI_L10 (x(Ti) 0.45408) + HCP_A3 (x(Ti) 0.48486) |
| AlTi-08Wit.tdb | 1705.3 | LIQUID (x(Ti) 0.34494) + AL5TI2 (x(Ti) 0.36342) + ALTI_L10 (x(Ti) 0.37869) |
| AlTi-08Wit.tdb | 1705.3 | LIQUID (x(Ti) 0.34494) + AL5TI2 (x(Ti) 0.36342) + ALTI_L10 (x(Ti) 0.37869) |
| AlTi-08Wit.tdb | 1669.15 | LIQUID (x(Ti) 0.251) + AL3TI_D022 (x(Ti) 0.2581) + AL5TI2 (x(Ti) 0.29594) |
| AlTi-08Wit.tdb | 1469.41 | AL2TI (x(Ti) 0.34371) + AL5TI2 (x(Ti) 0.3497) + ALTI_L10 (x(Ti) 0.38104) |
| AlTi-08Wit.tdb | 1469.41 | AL2TI (x(Ti) 0.34371) + AL5TI2 (x(Ti) 0.3497) + ALTI_L10 (x(Ti) 0.38104) |
| AlTi-08Wit.tdb | 1461.9 | ALTI3_D019 (x(Ti) 0.68059) + HCP_A3 (x(Ti) 0.68372) + B2_BCC (x(Ti) 0.69225) |
| AlTi-08Wit.tdb | 1461.9 | ALTI3_D019 (x(Ti) 0.68059) + HCP_A3 (x(Ti) 0.68372) + B2_BCC (x(Ti) 0.69225) |
| AlTi-08Wit.tdb | 1431.97 | ALTI3_D019 (x(Ti) 0.70565) + HCP_A3 (x(Ti) 0.71471) + B2_BCC (x(Ti) 0.72151) |
| AlTi-08Wit.tdb | 1431.97 | ALTI3_D019 (x(Ti) 0.70565) + HCP_A3 (x(Ti) 0.71471) + B2_BCC (x(Ti) 0.72151) |
| AlTi-08Wit.tdb | 1391.88 | ALTI_L10 (x(Ti) 0.53235) + HCP_A3 (x(Ti) 0.60218) + ALTI3_D019 (x(Ti) 0.61497) |
| AlTi-08Wit.tdb | 1391.88 | ALTI_L10 (x(Ti) 0.53235) + HCP_A3 (x(Ti) 0.60218) + ALTI3_D019 (x(Ti) 0.61497) |
| AlTi-08Wit.tdb | 1248.47 | AL3TI_D022 (x(Ti) 0.25238) + AL5TI2 (x(Ti) 0.3018) + AL2TI (x(Ti) 0.32655) |
| AlTi-08Wit.tdb | 1205.31 | AL3TI_D022 (x(Ti) 0.25187) + AL3TI_LT (x(Ti) 0.25435) + AL2TI (x(Ti) 0.32731) |
| AlTi-08Wit.tdb | 1082.59 | AL2TI (x(Ti) 0.34723) + AL5TI3 (x(Ti) 0.375) + ALTI_L10 (x(Ti) 0.41735) |
| AlTi-08Wit.tdb | 1006.63 | LIQUID (x(Ti) 0.00178) + AL3TI_D022 (x(Ti) 0.23513) + AL3TI_LT (x(Ti) 0.2449) |
| AlTi-08Wit.tdb | 938.69 | LIQUID (x(Ti) 8.400e-4) + FCC_A1 (x(Ti) 0.00784) + AL3TI_LT (x(Ti) 0.24339) |
| AlTi-24Lia.tdb | 1763.84 | LIQUID (x(Ti) 0.45907) + HCP_A3 (x(Ti) 0.50644) + BCC_A2 (x(Ti) 0.50866) |
| AlTi-24Lia.tdb | 1730.85 | LIQUID (x(Ti) 0.41297) + ALTI_L10 (x(Ti) 0.44135) + HCP_A3 (x(Ti) 0.4689) |
| AlTi-24Lia.tdb | 1688.63 | LIQUID (x(Ti) 0.31291) + AL11TI5_D023 (x(Ti) 0.32939) + ALTI_L10 (x(Ti) 0.37568) |
| AlTi-24Lia.tdb | 1657.59 | LIQUID (x(Ti) 0.2232) + AL3TI_D022 (x(Ti) 0.25381) + AL11TI5_D023 (x(Ti) 0.29767) |
| AlTi-24Lia.tdb | 1446.27 | AL2TI (x(Ti) 0.34291) + AL11TI5_D023 (x(Ti) 0.35085) + ALTI_L10 (x(Ti) 0.40775) |
| AlTi-24Lia.tdb | 1446.27 | AL2TI (x(Ti) 0.34291) + AL11TI5_D023 (x(Ti) 0.35085) + ALTI_L10 (x(Ti) 0.40775) |
| AlTi-24Lia.tdb | 1393.61 | ALTI_L10 (x(Ti) 0.53137) + HCP_A3 (x(Ti) 0.61485) + ALTI3_D019 (x(Ti) 0.63198) |
| AlTi-24Lia.tdb | 1270.77 | AL3TI_D022 (x(Ti) 0.25095) + AL11TI5_D023 (x(Ti) 0.30272) + AL2TI (x(Ti) 0.33429) |
| AlTi-24Lia.tdb | 1083.25 | AL2TI (x(Ti) 0.33473) + AL5TI3 (x(Ti) 0.375) + ALTI_L10 (x(Ti) 0.41461) |
| AlTi-24Lia.tdb | 1083.25 | AL2TI (x(Ti) 0.33473) + AL5TI3 (x(Ti) 0.375) + ALTI_L10 (x(Ti) 0.41461) |
| AlTi-24Lia.tdb | 938.15 | LIQUID (x(Ti) 5.000e-4) + FCC_A1 (x(Ti) 0.00684) + AL3TI_D022 (x(Ti) 0.24609) |
| AlTi-92Kat.tdb | 1849.36 | HCP_A3 (x(Ti) 0.60541) + LIQUID (x(Ti) 0.60597) + BCC_A2 (x(Ti) 0.63293) |
| AlTi-92Kat.tdb | 1766.34 | LIQUID (x(Ti) 0.41955) + ALTI_L10 (x(Ti) 0.43472) + HCP_A3 (x(Ti) 0.46777) |
| AlTi-92Kat.tdb | 1702.1 | LIQUID (x(Ti) 0.26636) + AL5TI2 (x(Ti) 0.28571) + ALTI_L10 (x(Ti) 0.33346) |
| AlTi-92Kat.tdb | 1702.1 | LIQUID (x(Ti) 0.26597) + AL5TI2 (x(Ti) 0.28571) + ALTI_L10 (x(Ti) 0.33323) |
| AlTi-92Kat.tdb | 1675.57 | LIQUID (x(Ti) 0.20573) + AL3TI_D022 (x(Ti) 0.25432) + AL5TI2 (x(Ti) 0.28571) |
| AlTi-92Kat.tdb | 1675.56 | LIQUID (x(Ti) 0.20511) + AL3TI_D022 (x(Ti) 0.25429) + AL5TI2 (x(Ti) 0.28571) |
| AlTi-92Kat.tdb | 1472.96 | AL5TI2 (x(Ti) 0.28571) + AL2TI (x(Ti) 0.33333) + ALTI_L10 (x(Ti) 0.35516) |
| AlTi-92Kat.tdb | 1472.96 | AL5TI2 (x(Ti) 0.28571) + AL2TI (x(Ti) 0.33333) + ALTI_L10 (x(Ti) 0.35517) |
| AlTi-92Kat.tdb | 1391.53 | ALTI_L10 (x(Ti) 0.53261) + HCP_A3 (x(Ti) 0.60389) + ALTI3_D019 (x(Ti) 0.61788) |
| AlTi-92Kat.tdb | 1263.07 | AL3TI_D022 (x(Ti) 0.25848) + AL5TI2 (x(Ti) 0.28571) + AL2TI (x(Ti) 0.33333) |
| AlTi-92Kat.tdb | 1263.07 | AL3TI_D022 (x(Ti) 0.25848) + AL5TI2 (x(Ti) 0.28571) + AL2TI (x(Ti) 0.33333) |
| AlTi-92Kat.tdb | 1263.07 | AL3TI_D022 (x(Ti) 0.25848) + AL5TI2 (x(Ti) 0.28571) + AL2TI (x(Ti) 0.33333) |
| AlTi-92Kat.tdb | 937.1 | LIQUID (x(Ti) 7.400e-4) + FCC_A1 (x(Ti) 0.00572) + AL3TI_D022 (x(Ti) 0.24959) |
| AlTi-98Sau-LB.tdb | 1775.9 | LIQUID (x(Ti) 0.4912) + HCP_A3 (x(Ti) 0.54015) + BCC_A2 (x(Ti) 0.55534) |
| AlTi-98Sau-LB.tdb | 1716.65 | LIQUID (x(Ti) 0.43641) + ALTI_L10 (x(Ti) 0.4588) + HCP_A3 (x(Ti) 0.49804) |
| AlTi-98Sau-LB.tdb | 1716.65 | LIQUID (x(Ti) 0.43641) + ALTI_L10 (x(Ti) 0.4588) + HCP_A3 (x(Ti) 0.49804) |
| AlTi-98Sau-LB.tdb | 1651.88 | LIQUID (x(Ti) 0.31056) + AL11TI5_D023 (x(Ti) 0.32) + ALTI_L10 (x(Ti) 0.38015) |
| AlTi-98Sau-LB.tdb | 1651.88 | LIQUID (x(Ti) 0.31056) + AL11TI5_D023 (x(Ti) 0.32) + ALTI_L10 (x(Ti) 0.38015) |
| AlTi-98Sau-LB.tdb | 1651.88 | LIQUID (x(Ti) 0.3105) + AL11TI5_D023 (x(Ti) 0.32) + ALTI_L10 (x(Ti) 0.38012) |
| AlTi-98Sau-LB.tdb | 1645.92 | AL3M_D022 (x(Ti) 0.27629) + LIQUID (x(Ti) 0.28359) + AL11TI5_D023 (x(Ti) 0.32) |
| AlTi-98Sau-LB.tdb | 1645.92 | AL3M_D022 (x(Ti) 0.27621) + LIQUID (x(Ti) 0.28326) + AL11TI5_D023 (x(Ti) 0.32) |
| AlTi-98Sau-LB.tdb | 1454.37 | AL11TI5_D023 (x(Ti) 0.32) + AL2TI (x(Ti) 0.33333) + ALTI_L10 (x(Ti) 0.38775) |
| AlTi-98Sau-LB.tdb | 1454.37 | AL11TI5_D023 (x(Ti) 0.32) + AL2TI (x(Ti) 0.33333) + ALTI_L10 (x(Ti) 0.38775) |
| AlTi-98Sau-LB.tdb | 1454.37 | AL11TI5_D023 (x(Ti) 0.32) + AL2TI (x(Ti) 0.33333) + ALTI_L10 (x(Ti) 0.38776) |
| AlTi-98Sau-LB.tdb | 1399.3 | ALTI_L10 (x(Ti) 0.51636) + HCP_A3 (x(Ti) 0.59264) + ALM3_D019 (x(Ti) 0.6028) |
| AlTi-98Sau-LB.tdb | 1399.3 | ALTI_L10 (x(Ti) 0.51636) + HCP_A3 (x(Ti) 0.59264) + ALM3_D019 (x(Ti) 0.6028) |
| AlTi-98Sau-LB.tdb | 1269.09 | AL3M_D022 (x(Ti) 0.25412) + AL11TI5_D023 (x(Ti) 0.32) + AL2TI (x(Ti) 0.33333) |
| AlTi-98Sau-LB.tdb | 1269.09 | AL3M_D022 (x(Ti) 0.25412) + AL11TI5_D023 (x(Ti) 0.32) + AL2TI (x(Ti) 0.33333) |
| AlTi-98Sau-LB.tdb | 1269.09 | AL3M_D022 (x(Ti) 0.25411) + AL11TI5_D023 (x(Ti) 0.32) + AL2TI (x(Ti) 0.33333) |
| AlTi-98Sau-LB.tdb | 938.03 | LIQUID (x(Ti) 7.300e-4) + FCC_A1 (x(Ti) 0.00742) + AL3M_D022 (x(Ti) 0.25) |
| AlTi-98Sau-LB.tdb | 938.03 | LIQUID (x(Ti) 7.200e-4) + FCC_A1 (x(Ti) 0.00733) + AL3M_D022 (x(Ti) 0.25) |

Convex hulls: [Materials Project DFT hull](https://data.orchid-project.org/hulls/dft-mp/AL/AL-TI.json) · [OQMD DFT hull](https://data.orchid-project.org/hulls/dft-oqmd/AL/AL-TI.json) · [CALPHAD hull AlTi-00Ohn](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-TI--AlTi-00Ohn.json) · [CALPHAD hull AlTi-08Wit](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-TI--AlTi-08Wit.json) · [CALPHAD hull AlTi-98Sau-LB](https://data.orchid-project.org/hulls/calphad-sgte/AL/AL-TI--AlTi-98Sau-LB.json)

## Invariant reactions (literature)

Table: Invariant reactions reported in the literature for the Al–Ti system (160)

| T (K) | Reaction / phases | Compositions (mole fraction) | Class | Source | Location | Quote |
|---:|---|---|---|---|---|---|
| 1989 | congruent melting: L ↔ β | L: Al 0.212; β: Al 0.212 | model | [1] Witusiewicz 2008; _cites Saunders 1998_ | Table 4, p. 6, row 4; `ORC-JDJULHJ4VV` |  |
| 1983 | congruent melting: L ↔ β | L: Al 0.085; β: Al 0.085 | experimental | [1] Witusiewicz 2008; _cites Ogden 1951_ | Table 4, p. 6, row 1; `ORC-5XEHP6OR2S` |  |
| 1963 | congruent melting: L ↔ β | L: Al 0.096; β: Al 0.096 | unspecified | [1] Witusiewicz 2008 | Table 4, p. 6, row 5; `ORC-EOJI6XMCSY` |  |
| 1963 | congruent melting: L ↔ β | L: Al 0.085; β: Al 0.085 | model | [1] Witusiewicz 2008; _cites Schuster 2006_ [doi](https://doi.org/10.1361/154770306x109809) | Table 4, p. 6, row 3; `ORC-OZBV2WEI4O` |  |
| 1962 | congruent melting: L ↔ β |  | experimental | [1] Witusiewicz 2008 | Table 4, p. 6, row 2; `ORC-LUSWWZWARA` |  |
| 1793 | peritectic: L + β ↔ α |  | experimental | [1] Witusiewicz 2008; _cites Bulanova 2004_ [doi](https://doi.org/10.1007/s11669-004-0110-0) | Table 4, p. 6, row 10; `ORC-6MQFMJRFTA` |  |
| 1776 | peritectic: L + β ↔ α | L: Al 0.509; β: Al 0.445; α: Al 0.46 | model | [1] Witusiewicz 2008; _cites Saunders 1998_ | Table 4, p. 6, row 13; `ORC-PTLQ7GXZZK` |  |
| 1775.9 | peritectic: Liquid + bcc-A2 -> hcp-A3 | L: Ti 0.491; bcc-A2: Ti 0.555; hcp-A3: Ti 0.54 | model | [2] (ed.) 1998 | Table I, p. 109, row 7; `ORC-YPV3NRSIIX` |  |
| 1768.15 | peritectic: L + (βTi) -> (αTi) | L: Al 0.49; (βTi): Al 0.465; (αTi): Al 0.47 | experimental | [3] Kattner 1992; _cites Mishurda_ | Table II, p. 4, row 2; `ORC-VFXHVHMCVY` |  |
| 1765.43 | L + β-Ti -> α-Ti |  | model | [4] Liang 2024 | Table 3, p. 8, row 2; `ORC-PF36BCDDL2` |  |
| 1764 | peritectic: L + β ↔ α | L: Al 0.495; β: Al 0.446; α: Al 0.467 | model | [1] Witusiewicz 2008; _cites Schuster 2006_ [doi](https://doi.org/10.1361/154770306x109809) | Table 4, p. 6, row 11; `ORC-46UP7MFEPR` |  |
| 1764 | peritectic: L + β ↔ α | L: Al 0.494; β: Al 0.446; α: Al 0.467 | unspecified | [1] Witusiewicz 2008 | Table 4, p. 6, row 14; `ORC-WEWOQI2YJB` |  |
| 1763.15 | peritectic: L + (βTi) -> (αTi) | L: Al 0.494; (βTi): Al 0.448; (αTi): Al 0.473 | model | [3] Kattner 1992 | Table II, p. 4, row 1; `ORC-UZI5FUQYMH` |  |
| 1763 | peritectic: L + β ↔ α | L: Al 0.48; β: Al 0.435; α: Al 0.46 | unspecified | [1] Witusiewicz 2008; _cites Yu 2000_ | Table 4, p. 6, row 8; `ORC-26OYWMWADB` |  |
| 1763 | peritectic: L + β ↔ α | L: Al 0.495; β: Al 0.465; α: Al 0.475 | unspecified | [1] Witusiewicz 2008; _cites Perepezko 1993_ | Table 4, p. 6, row 6; `ORC-FC43YREP2A` |  |
| 1763 | peritectic: L + β ↔ α | L: Al 0.497; β: Al 0.46; α: Al 0.479 | model | [1] Witusiewicz 2008; _cites Zhang 1997_ [doi](https://doi.org/10.1016/s0966-9795%2897%2900030-7) | Table 4, p. 6, row 12; `ORC-TCEMZUHRWL` |  |
| 1759 | peritectic: L + β ↔ α | L: Al 0.478; β: Al 0.445; α: Al 0.462 | experimental | [1] Witusiewicz 2008; _cites Hall 1990_ [doi](https://doi.org/10.1016/0956-7151%2890%2990208-x) | Table 4, p. 6, row 7; `ORC-T53AVKVNWT` |  |
| 1745 | peritectic: L + β ↔ α |  | experimental | [1] Witusiewicz 2008; _cites Ence 1961_ | Table 4, p. 6, row 9; `ORC-X3EPDNECBG` |  |
| 1737 | peritectic: L + α ↔ γ | γ: Al 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008; _cites Ogden 1951_ | Table 4, p. 6, row 17; `ORC-BS7CVC42Z6` |  |
| 1736 | peritectic: L + α ↔ γ | L: Al 0.549; α: Al 0.517; γ: Al 0.547 | model | [1] Witusiewicz 2008; _cites Zhang 1997_ [doi](https://doi.org/10.1016/s0966-9795%2897%2900030-7) | Table 4, p. 6, row 24; `ORC-V2KBWOWCPO` |  |
| 1735.95 | peritectic: L + (αTi) -> TiAl | L: Al 0.551; (αTi): Al 0.514; TiAl: Al 0.55 | model | [3] Kattner 1992 | Table II, p. 4, row 3; `ORC-MTMQUVJSW4` |  |
| 1735.15 | peritectic: L + (αTi) -> TiAl | L: Al 0.56; (αTi): Al 0.51; TiAl: Al 0.5, Ti 0.5 | experimental | [3] Kattner 1992; _cites Mishurda_ | Table II, p. 4, row 4; `ORC-CPRNUWJ5VO` |  |
| 1735 | peritectic: L + α ↔ γ | L: Al 0.56; α: Al 0.51; γ: Al 0.53 | unspecified | [1] Witusiewicz 2008; _cites Perepezko 1993_ | Table 4, p. 6, row 15; `ORC-4KJEWBD2TZ` |  |
| 1733 | peritectic: L + α ↔ γ | γ: Al 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008; _cites McPherson 1954_ | Table 4, p. 6, row 20; `ORC-L5FZ3NL3BG` |  |
| 1730.61 | L + α-Ti -> L10-TiAl | L10-TiAl: Ti 0.5 | model | [4] Liang 2024 | Table 3, p. 8, row 5; `ORC-737JZU6BQL` |  |
| 1729 | peritectic: L + α ↔ γ | L: Al 0.59; α: Al 0.505; γ: Al 0.545 | model | [1] Witusiewicz 2008; _cites Schuster 2006_ [doi](https://doi.org/10.1361/154770306x109809) | Table 4, p. 6, row 23; `ORC-5ELSIDBTHK` |  |
| 1729 | peritectic: L + α ↔ γ | L: Al 0.547; α: Al 0.515; γ: Al 0.546 | unspecified | [1] Witusiewicz 2008 | Table 4, p. 6, row 26; `ORC-ATRUGFFDZO` |  |
| 1729 | peritectic: L + α ↔ γ | γ: Al 0.5, Ti 0.5 | unspecified | [1] Witusiewicz 2008; _cites Anderson 1991_ | Table 4, p. 6, row 16; `ORC-IXESTY2JNU` |  |
| 1725 | peritectic: L + α ↔ γ | L: Al 0.567; γ: Al 0.535 | unspecified | [1] Witusiewicz 2008; _cites Schuster 1990_ | Table 4, p. 6, row 18; `ORC-5UFZ2J3Q4N` |  |
| 1723 | peritectic: L + α ↔ γ | γ: Al 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008 | Table 4, p. 6, row 22; `ORC-QIHXF5JSHP` |  |
| 1717 | peritectic: L + α ↔ γ | L: Al 0.564; α: Al 0.502; γ: Al 0.541 | model | [1] Witusiewicz 2008; _cites Saunders 1998_ | Table 4, p. 6, row 25; `ORC-XSLJF4ROOI` |  |
| 1716.7 | peritectic: Liquid + hcp-A3 -> AlTi-L10 | L: Ti 0.436; hcp-A3: Ti 0.498; AlTi-L10: Ti 0.459 | model | [2] (ed.) 1998 | Table I, p. 109, row 6; `ORC-E7FKVQ7OO6` |  |
| 1715 | peritectic: L + α ↔ γ | γ: Al 0.5, Ti 0.5 | experimental | [1] Witusiewicz 2008; _cites Hall 1990_ [doi](https://doi.org/10.1016/0956-7151%2890%2990208-x) | Table 4, p. 6, row 19; `ORC-5AUXD4C4TD` |  |
| 1706.15 | L + TiAl -> h-TiAl2 | L: Al 0.72; TiAl: Al 0.5, Ti 0.5 | experimental | [3] Kattner 1992; _cites Schuster 1990_ | Table IV, p. 8, row 2; `ORC-7CCMFO3FTA` |  |
| 1705 | L + γ ↔ ζ | L: Al 0.655; γ: Al 0.621; ζ: Al 0.637 | unspecified | [1] Witusiewicz 2008 | Table 4, p. 6, row 31; `ORC-UABEBL4VJ4` |  |
| 1703.15 | L + TiAl -> h-TiAl2 | L: Al 0.698; TiAl: Al 0.649; h-TiAl2: Al 0.667 | model | [3] Kattner 1992 | Table IV, p. 8, row 1; `ORC-GLOEJGJV6H` |  |
| 1698.15 | peritectic: L + TiAl -> Ti2Al5 | L: Al 0.73; TiAl: Al 0.5, Ti 0.5; Ti2Al5: Al 0.714286, Ti 0.285714 | experimental | [3] Kattner 1992; _cites Mishurda_ | Table II, p. 4, row 8; `ORC-5JQNMTHDPH` |  |
| 1698.15 | L + TiAl -> h-TiAl2 | L: Al 0.73; TiAl: Al 0.5, Ti 0.5 | unspecified | [3] Kattner 1992; _cites Mishurda_ | Table IV, p. 8, row 3; `ORC-WBYEK4L2GW` |  |
| 1698 | peritectic: L + ζ ↔ ε(h) or L + Ti5Al11 ↔ ε(h) or else L + γ/1d-APS ↔ ε(h) | L: Al 0.78; ζ: Al 0.715; ε(h): Al 0.75 | experimental | [1] Witusiewicz 2008; _cites Bulanova 2004_ [doi](https://doi.org/10.1007/s11669-004-0110-0) | Table 4, p. 6, row 37; `ORC-TWBXRDJTHZ` |  |
| 1689.15 | L + h-TiAl2 -> Ti2Al5 | L: Al 0.765; h-TiAl2: Al 0.667; Ti2Al5: Al 0.714286, Ti 0.285714 | experimental | [3] Kattner 1992; _cites Schuster 1990_ | Table IV, p. 8, row 5; `ORC-CWRYZRCACE` |  |
| 1689.15 | peritectic: L + TiAl -> Ti2Al5 | L: Al 0.76; TiAl: Al 0.64; Ti2Al5: Al 0.714286, Ti 0.285714 | experimental | [3] Kattner 1992; _cites Schuster 1990_ | Table II, p. 4, row 7; `ORC-MHROQ2GP3U` |  |
| 1689.05 | peritectic: L + TiAl -> Ti2Al5 | L: Al 0.725; TiAl: Al 0.665; Ti2Al5: Al 0.714 | model | [3] Kattner 1992 | Table II, p. 4, row 5; `ORC-D3CFOOCNTE` |  |
| 1689 | peritectic: L + γ ↔ ζ or L + γ ↔ Ti5Al11 or else L + Ti1-xAl1+x ↔ Ti5Al11 | L: Al 0.719; γ: Al 0.5, Ti 0.5; ζ: Al 0.714286, Ti 0.285714 | unspecified | [1] Witusiewicz 2008; _cites Grytsiv 2003_ [doi](https://doi.org/10.1361/105497103772084552) | Table 4, p. 6, row 28; `ORC-2MLWJVTLTK` |  |
| 1689 | peritectic: L + γ ↔ ζ or L + γ ↔ Ti5Al11 or else L + Ti1-xAl1+x ↔ Ti5Al11 | L: Al 0.719; γ: Al 0.676; ζ: Al 0.714 | model | [1] Witusiewicz 2008; _cites Zhang 1997_ [doi](https://doi.org/10.1016/s0966-9795%2897%2900030-7) | Table 4, p. 6, row 29; `ORC-2MSQWSSYH7` |  |
| 1688.76 | L + L10-TiAl -> D023-Ti5Al11 | L10-TiAl: Ti 0.5; D023-Ti5Al11: Ti 0.3125 | model | [4] Liang 2024 | Table 3, p. 8, row 6; `ORC-S56JAAO67Y` |  |
| 1688.25 | L + h-TiAl2 -> Ti2Al5 | L: Al 0.732; h-TiAl2: Al 0.667; Ti2Al5: Al 0.714 | model | [3] Kattner 1992 | Table IV, p. 8, row 4; `ORC-6HBNEYGTQ2` |  |
| 1688.15 | peritectic: L + TiAl -> Ti2Al5 | L: Al 0.68; TiAl: Al 0.5, Ti 0.5; Ti2Al5: Al 0.714286, Ti 0.285714 | experimental | [3] Kattner 1992; _cites Kaltenbach 1989_ | Table II, p. 4, row 6; `ORC-6VUMM3W54E` |  |
| 1688 | peritectic: L + γ ↔ ζ or L + γ ↔ Ti5Al11 or else L + Ti1-xAl1+x ↔ Ti5Al11 | L: Al 0.68; γ: Al 0.5, Ti 0.5; ζ: Al 0.714286, Ti 0.285714 | unspecified | [1] Witusiewicz 2008; _cites Kaltenbach 1989_ | Table 4, p. 6, row 27; `ORC-IOQ7W4OC2M` |  |
| 1685 | peritectic: L + ζ ↔ ε(h) or L + Ti5Al11 ↔ ε(h) or else L + γ/1d-APS ↔ ε(h) | L: Al 0.775; ζ: Al 0.73; ε(h): Al 0.75 | model | [1] Witusiewicz 2008; _cites Schuster 2006_ [doi](https://doi.org/10.1361/154770306x109809) | Table 4, p. 6, row 39; `ORC-Y43U2U3THJ` |  |
| 1683 | peritectic: L + ζ ↔ ε(h) or L + Ti5Al11 ↔ ε(h) or else L + γ/1d-APS ↔ ε(h) | ζ: Al 0.714286, Ti 0.285714 | experimental | [1] Witusiewicz 2008; _cites Kornilov 1956_ | Table 4, p. 6, row 32; `ORC-KDTB6SYR2M` |  |
| 1681 | peritectic: L + ζ ↔ ε(h) or L + Ti5Al11 ↔ ε(h) or else L + γ/1d-APS ↔ ε(h) | ζ: Al 0.714286, Ti 0.285714 | experimental | [1] Witusiewicz 2008; _cites Palm 2002_ [doi](https://doi.org/10.1016/s0966-9795%2802%2900022-5) | Table 4, p. 6, row 35; `ORC-4UU77TOHRM` |  |
| 1678 | peritectic: L + ζ ↔ ε(h) or L + Ti5Al11 ↔ ε(h) or else L + γ/1d-APS ↔ ε(h) | ζ: Al 0.714286, Ti 0.285714 | experimental | [1] Witusiewicz 2008 | Table 4, p. 6, row 38; `ORC-Z6AGKBP7AG` |  |
| 1669.15 | peritectic: L + Ti2Al5 -> TiAl3 | Ti2Al5: Al 0.714286, Ti 0.285714; TiAl3: Al 0.75, Ti 0.25 | experimental | [3] Kattner 1992; _cites Mishurda_ | Table II, p. 4, row 12; `ORC-UOAZTNOOZQ` |  |
| 1669 | L + Ti2Al5 ↔ ε(h) | L: Al 0.749; Ti2Al5: Al 0.704; ε(h): Al 0.742 | unspecified | [1] Witusiewicz 2008 | Table 4, p. 6, row 42; `ORC-VYOVZIITPS` |  |
| 1668.15 | peritectic: L + Ti2Al5 -> TiAl3 | L: Al 0.78; Ti2Al5: Al 0.714286, Ti 0.285714; TiAl3: Al 0.75, Ti 0.25 | experimental | [3] Kattner 1992; _cites Kaltenbach 1989_ | Table II, p. 4, row 10; `ORC-7QFQQWJJJW` |  |
| 1668 | peritectic: L + ζ ↔ ε(h) or L + Ti5Al11 ↔ ε(h) or else L + γ/1d-APS ↔ ε(h) | L: Al 0.79; ζ: Al 0.714; ε(h): Al 0.75 | unspecified | [1] Witusiewicz 2008; _cites Kaltenbach 1989_ | Table 4, p. 6, row 33; `ORC-DRHAKFVMGK` |  |
| 1666.05 | peritectic: L + Ti2Al5 -> TiAl3 | L: Al 0.791; Ti2Al5: Al 0.714; TiAl3: Al 0.746 | model | [3] Kattner 1992 | Table II, p. 4, row 9; `ORC-HJXYDSL53S` |  |
| 1666 | peritectic: L + ζ ↔ ε(h) or L + Ti5Al11 ↔ ε(h) or else L + γ/1d-APS ↔ ε(h) | L: Al 0.786; ζ: Al 0.714; ε(h): Al 0.74 | model | [1] Witusiewicz 2008; _cites Zhang 1997_ [doi](https://doi.org/10.1016/s0966-9795%2897%2900030-7) | Table 4, p. 6, row 40; `ORC-VEMWOZPR5G` |  |
| 1660.15 | peritectic: L + Ti2Al5 -> TiAl3 | Ti2Al5: Al 0.714286, Ti 0.285714; TiAl3: Al 0.75, Ti 0.25 | experimental | [3] Kattner 1992; _cites Schuster 1990_ | Table II, p. 4, row 11; `ORC-65DYPUQIUY` |  |
| 1660 | peritectic: L + ζ ↔ ε(h) or L + Ti5Al11 ↔ ε(h) or else L + γ/1d-APS ↔ ε(h) | L: Al 0.81; ζ: Al 0.711; ε(h): Al 0.75 | unspecified | [1] Witusiewicz 2008; _cites Schmid-Fetzer 2003_ | Table 4, p. 6, row 34; `ORC-LGCU4HEHDK` |  |
| 1657.41 | L + D023-Ti5Al11 -> D022-TiAl3 | D023-Ti5Al11: Ti 0.3125; D022-TiAl3: Ti 0.25 | model | [4] Liang 2024 | Table 3, p. 8, row 11; `ORC-7KNR44HRVG` |  |
| 1652 | peritectic: L + γ ↔ ζ or L + γ ↔ Ti5Al11 or else L + Ti1-xAl1+x ↔ Ti5Al11 | L: Al 0.69; γ: Al 0.62; ζ: Al 0.68 | model | [1] Witusiewicz 2008; _cites Saunders 1998_ | Table 4, p. 6, row 30; `ORC-525UTFFSVL` |  |
| 1651.9 | peritectic: Liquid + AlTi-L10 -> Al11Ti5 | L: Ti 0.31; AlTi-L10: Ti 0.38; Al11Ti5: Ti 0.32 | model | [2] (ed.) 1998 | Table I, p. 109, row 5; `ORC-AVFAGXN3Q3` |  |
| 1628 | peritectic: L + ζ ↔ ε(h) or L + Ti5Al11 ↔ ε(h) or else L + γ/1d-APS ↔ ε(h) | L: Al 0.753; ζ: Al 0.68; ε(h): Al 0.75 | model | [1] Witusiewicz 2008; _cites Saunders 1998_ | Table 4, p. 6, row 41; `ORC-5HUMNUAEZC` |  |
| 1523 | congruent transformation: Ti5Al11 ↔ η or ζ ↔ η or else γ/1d-APS ↔ η | Ti5Al11: Al 0.667; η: Al 0.667 | experimental | [1] Witusiewicz 2008; _cites Raman 1965_ | Table 4, p. 6, row 44; `ORC-EOFIH5JF4Z` |  |
| 1523 | peritectoid: α + β \<-> α2 | α2: Al 0.25, Ti 0.75 | experimental | [1] Witusiewicz 2008; _cites Kornilov 1965_ | Table 4, p. 7, row 7; `ORC-H4UJUSA3ZM` |  |
| 1498 | peritectoid: α + β \<-> α2 | α2: Al 0.25, Ti 0.75 | experimental | [1] Witusiewicz 2008; _cites Ouchi 1980_ | Table 4, p. 7, row 6; `ORC-6LP5467O6Y` |  |
| 1497 | polymorphic: ζ ↔ η | ζ: Al 0.666; η: Al 0.666 | unspecified | [1] Witusiewicz 2008 | Table 4, p. 6, row 48; `ORC-ULROSYPZ37` |  |
| 1488.15 | polymorphic: h-TiAl2 -> r-TiAl2 | r-TiAl2: Al 0.667 | model | [3] Kattner 1992 | Table IV, p. 8, row 6; `ORC-BD2B4AKEXI` |  |
| 1488.15 | polymorphic: h-TiAl2 -> r-TiAl2 | r-TiAl2: Al 0.667 | experimental | [3] Kattner 1992; _cites Schuster 1990_ | Table IV, p. 8, row 8; `ORC-N6V3DHCOGL` |  |
| 1488.15 | peritectoid: TiAl + Ti2Al5 -> TiAl2 | TiAl: Al 0.5, Ti 0.5; Ti2Al5: Al 0.714286, Ti 0.285714; TiAl2: Al 0.666667, Ti 0.333333 | experimental | [3] Kattner 1992; _cites Schuster 1990_ | Table II, p. 4, row 25; `ORC-PCO4OQ4Q5S` |  |
| 1488 | congruent transformation: Ti5Al11 ↔ η or ζ ↔ η or else γ/1d-APS ↔ η | Ti5Al11: Al 0.665; η: Al 0.665 | unspecified | [1] Witusiewicz 2008; _cites Braun 1999_ | Table 4, p. 6, row 45; `ORC-JX4ZJPMEL6` |  |
| 1488 | congruent transformation: Ti5Al11 ↔ η or ζ ↔ η or else γ/1d-APS ↔ η | Ti5Al11: Al 0.6875, Ti 0.3125; η: Al 0.666667, Ti 0.333333 | model | [1] Witusiewicz 2008; _cites Grytsiv 2003_ [doi](https://doi.org/10.1361/105497103772084552) | Table 4, p. 6, row 46; `ORC-LP5UEARES3` |  |
| 1488 | congruent transformation: Ti5Al11 ↔ η or ζ ↔ η or else γ/1d-APS ↔ η | Ti5Al11: Al 0.657; η: Al 0.657 | model | [1] Witusiewicz 2008; _cites Schuster 2006_ [doi](https://doi.org/10.1361/154770306x109809) | Table 4, p. 6, row 47; `ORC-YW4GE7K6V7` |  |
| 1478.15 | polymorphic: h-TiAl2 -> r-TiAl2 | h-TiAl2: Al 0.666667, Ti 0.333333; r-TiAl2: Al 0.666667, Ti 0.333333 | unspecified | [3] Kattner 1992; _cites Mishurda_ | Table IV, p. 8, row 9; `ORC-JQAPI2TTYI` |  |
| 1478.15 | peritectoid: TiAl + Ti2Al5 -> TiAl2 | TiAl: Al 0.5, Ti 0.5; Ti2Al5: Al 0.714286, Ti 0.285714; TiAl2: Al 0.666667, Ti 0.333333 | experimental | [3] Kattner 1992; _cites Mishurda_ | Table II, p. 4, row 26; `ORC-ZFOR44LOZC` |  |
| 1478 | peritectoid: ζ + γ ↔ η | ζ: Al 0.714; γ: Al 0.6; η: Al 0.667 | unspecified | [1] Witusiewicz 2008; _cites Mishurda 1991_ | Table 4, p. 6, row 50; `ORC-GIAJ5G2SVH` |  |
| 1473.15 | peritectoid: (βTi) + (αTi) -> Ti3Al | (βTi): Al 0.29; (αTi): Al 0.35; Ti3Al: Al 0.3 | experimental | [3] Kattner 1992; _cites Waterstrat 1988_ | Table II, p. 4, row 18; `ORC-NWJ4RLYAQW` |  |
| 1473 | peritectoid: Ti5Al11 + γ \<-> η | Ti5Al11: Al 0.714; γ: Al 0.612; η: Al 0.667 | model | [1] Witusiewicz 2008; _cites Zhang 1997_ [doi](https://doi.org/10.1016/s0966-9795%2897%2900030-7) | Table 4, p. 7, row 1; `ORC-K2ITCK7OY7` |  |
| 1473 | peritectoid: α + β \<-> α2 | α: Al 0.33; β: Al 0.28; α2: Al 0.32 | model | [1] Witusiewicz 2008; _cites Schuster 2006_ [doi](https://doi.org/10.1361/154770306x109809) | Table 4, p. 7, row 9; `ORC-LGNESKWE4O` |  |
| 1473 | peritectoid: α + β \<-> α2 | α: Al 0.35; β: Al 0.29; α2: Al 0.33 | experimental | [1] Witusiewicz 2008; _cites Waterstrat 1988_ [doi](https://doi.org/10.6028/nist.ir.88-3856) | Table 4, p. 7, row 4; `ORC-XBIXB7C3UO` |  |
| 1472.55 | peritectoid: TiAl + Ti2Al5 -> TiAl2 | TiAl: Al 0.645; Ti2Al5: Al 0.714; TiAl2: Al 0.667 | model | [3] Kattner 1992 | Table II, p. 4, row 23; `ORC-K4WADL4HLX` |  |
| 1469 | eutectoid: ζ \<-> γ + η | ζ: Al 0.656; γ: Al 0.619; η: Al 0.65 | model | [1] Witusiewicz 2008 | Table 4, p. 7, row 3; `ORC-5AGHRI7RSY` |  |
| 1469 | peritectoid: α + β \<-> α2 | α: Al 0.32; β: Al 0.287; α2: Al 0.313 | experimental | [1] Witusiewicz 2008; _cites Suzuki 2002_ [doi](https://doi.org/10.1016/s0966-9795%2802%2900113-9) | Table 4, p. 7, row 5; `ORC-KWXFOK4HNB` |  |
| 1466 | congruent transformation: α \<-> α2 | α: Al 0.00333; α2: Al 0.00333 | model | [1] Witusiewicz 2008 | Table 4, p. 7, row 14; `ORC-PEAO7FYPQW` |  |
| 1462 | eutectoid: α \<-> β0 + α2 | α: Al 0.317; β0: Al 0.308; α2: Al 0.32 | model | [1] Witusiewicz 2008 | Table 4, p. 7, row 10; `ORC-REX7MMFIZM` |  |
| 1454.3 | peritectoid: Al11Ti5 + AlTi-L10 -> Al2Ti | Al11Ti5: Ti 0.32; AlTi-L10: Ti 0.388; Al2Ti: Ti 0.333 | model | [2] (ed.) 1998 | Table I, p. 109, row 1; `ORC-VEKY2ZZ7V7` |  |
| 1454 | peritectoid: Ti5Al11 + γ \<-> η | Ti5Al11: Al 0.68; γ: Al 0.612; η: Al 0.667 | model | [1] Witusiewicz 2008; _cites Saunders 1998_ | Table 4, p. 7, row 2; `ORC-73JODXYUSF` |  |
| 1453 | peritectoid: β + α2 \<-> α | β: Al 0.187; α2: Al 0.26; α: Al 0.21 | experimental | [1] Witusiewicz 2008; _cites Sasano 1973_ | Table 4, p. 7, row 16; `ORC-A43GG3SYRA` |  |
| 1453 | peritectoid: α + β \<-> α2 | α2: Al 0.25, Ti 0.75 | experimental | [1] Witusiewicz 2008; _cites Martin 1980_ | Table 4, p. 7, row 8; `ORC-MKITBFWBES` |  |
| 1448.15 | polymorphic: h-TiAl2 -> r-TiAl2 | h-TiAl2: Al 0.666667, Ti 0.333333; r-TiAl2: Al 0.666667, Ti 0.333333 | unspecified | [3] Kattner 1992; _cites Kaltenbach 1989_ | Table IV, p. 8, row 7; `ORC-73VRHX6PQH` |  |
| 1448.15 | peritectoid: TiAl + Ti2Al5 -> TiAl2 | TiAl: Al 0.5, Ti 0.5; Ti2Al5: Al 0.714286, Ti 0.285714; TiAl2: Al 0.666667, Ti 0.333333 | experimental | [3] Kattner 1992; _cites Kaltenbach 1989_ | Table II, p. 4, row 24; `ORC-QZIZ4MMMFC` |  |
| 1448 | congruent transformation: Ti5Al11 ↔ η or ζ ↔ η or else γ/1d-APS ↔ η | Ti5Al11: Al 0.667; η: Al 0.667 | unspecified | [1] Witusiewicz 2008; _cites Kaltenbach 1989_ | Table 4, p. 6, row 43; `ORC-4GG5MBY37P` |  |
| 1445 | peritectoid: β + α2 \<-> α | β: Al 0.239; α2: Al 0.28; α: Al 0.26 | experimental | [1] Witusiewicz 2008; _cites Ence 1961_ | Table 4, p. 7, row 15; `ORC-HZNEZNTPMP` |  |
| 1443 | peritectoid: β + α2 \<-> α | β: Al 0.25; α2: Al 0.275; α: Al 0.27 | model | [1] Witusiewicz 2008; _cites Schuster 2006_ [doi](https://doi.org/10.1361/154770306x109809) | Table 4, p. 7, row 21; `ORC-HAH6HENE7Q` |  |
| 1443 | eutectoid: Ti1-xAl1+x ↔ γ + η | Ti1-xAl1+x: Al 0.633; γ: Al 0.623; η: Al 0.658; Ti1−xAl1+x: Al 0.633 | unspecified | [1] Witusiewicz 2008; _cites Grytsiv 2003_ [doi](https://doi.org/10.1361/105497103772084552) | Table 4, p. 6, row 49; `ORC-HXO6YFXINL` |  |
| 1442.15 | congruent transformation: (αTi) -> Ti3Al | (αTi): Al 0.325; Ti3Al: Al 0.325 | experimental | [3] Kattner 1992; _cites Shull 1985_ | Table II, p. 4, row 17; `ORC-KF6NHVEPAV` |  |
| 1442 | congruent transformation: α \<-> α2 | α: Al 0.325; α2: Al 0.325 | experimental | [1] Witusiewicz 2008; _cites Shull 1985_ | Table 4, p. 7, row 11; `ORC-4LERFE72EL` |  |
| 1439 | congruent transformation: α \<-> α2 | α: Al 0.31; α2: Al 0.31 | model | [1] Witusiewicz 2008; _cites Zhang 1997_ [doi](https://doi.org/10.1016/s0966-9795%2897%2900030-7) | Table 4, p. 7, row 13; `ORC-5JDBLJZK4Q` |  |
| 1437.15 | congruent transformation: (αTi) -> Ti3Al | (αTi): Al 0.309; Ti3Al: Al 0.309 | model | [3] Kattner 1992 | Table II, p. 4, row 16; `ORC-FB6LQSEQLT` |  |
| 1437 | congruent transformation: α \<-> α2 | α: Al 0.309; α2: Al 0.309 | model | [1] Witusiewicz 2008; _cites Kattner 1992_ [doi](https://doi.org/10.1007/bf02646001) | Table 4, p. 7, row 12; `ORC-FFEIYC4LCU` |  |
| 1436.35 | D023-Ti5Al11 -> TiAl2 + L10-TiAl | D023-Ti5Al11: Ti 0.3125; TiAl2: Ti 0.333333; L10-TiAl: Ti 0.5 | model | [4] Liang 2024 | Table 3, p. 8, row 8; `ORC-JNMYW7AXZS` |  |
| 1432 | peritectoid: β0 + α2 \<-> α | β0: Al 0.278; α2: Al 0.294; α: Al 0.285 | model | [1] Witusiewicz 2008 | Table 4, p. 7, row 23; `ORC-IXRSRSHOWG` |  |
| 1423.15 | peritectoid: (βTi) + Ti3Al -> (αTi) | (βTi): Al 0.24; Ti3Al: Al 0.26; (αTi): Al 0.25 | experimental | [3] Kattner 1992; _cites Waterstrat 1988_ | Table II, p. 4, row 19; `ORC-HYPIWDNRF5` |  |
| 1423 | peritectoid: β + α2 \<-> α | β: Al 0.24; α2: Al 0.26; α: Al 0.25 | experimental | [1] Witusiewicz 2008; _cites Waterstrat 1988_ [doi](https://doi.org/10.6028/nist.ir.88-3856) | Table 4, p. 7, row 18; `ORC-OQO4UOUR65` |  |
| 1398 | eutectoid: α \<-> α2 + γ | α: Al 0.4; α2: Al 0.39; γ: Al 0.48 | experimental | [1] Witusiewicz 2008; _cites Schuster 1990_ | Table 4, p. 7, row 28; `ORC-ACD6F43XUF` |  |
| 1393.33 | α-Ti -> D019-Ti3Al + L10-TiAl | D019-Ti3Al: Ti 0.75; L10-TiAl: Ti 0.5 | model | [4] Liang 2024 | Table 3, p. 8, row 4; `ORC-HZ2CIX4E2B` |  |
| 1393.15 | eutectoid: (αTi) -> Ti3Al + TiAl | Ti3Al: Al 0.25, Ti 0.75; TiAl: Al 0.5, Ti 0.5 | experimental | [3] Kattner 1992; _cites Jones 1988_ [doi](https://doi.org/10.1016/s0036-9748%2888%2980138-8) | Table II, p. 4, row 21; `ORC-4ZYGZ3C32B` |  |
| 1393 | eutectoid: α \<-> α2 + γ | α: Al 0.39; α2: Al 0.385; γ: Al 0.465 | model | [1] Witusiewicz 2008; _cites Schuster 2006_ [doi](https://doi.org/10.1361/154770306x109809) | Table 4, p. 7, row 29; `ORC-4YITBX76WS` |  |
| 1393 | eutectoid: α \<-> α2 + γ | α: Al 0.39; α2: Al 0.385; γ: Al 0.458 | experimental | [1] Witusiewicz 2008; _cites Kainuma 1994_ [doi](https://doi.org/10.1016/0966-9795%2894%2990018-3) | Table 4, p. 7, row 25; `ORC-EUGWE4AHBS` |  |
| 1393 | eutectoid: α \<-> α2 + γ | α: Al 0.39; α2: Al 0.385; γ: Al 0.458 | experimental | [1] Witusiewicz 2008; _cites Hellwig 1992_ [doi](https://doi.org/10.1016/0956-716x%2892%2990103-l) | Table 4, p. 7, row 24; `ORC-KBKLSCP4LC` |  |
| 1392 | eutectoid: α \<-> α2 + γ | α: Al 0.398; α2: Al 0.385; γ: Al 0.468 | model | [1] Witusiewicz 2008 | Table 4, p. 7, row 32; `ORC-VTMISENGGL` |  |
| 1391.65 | eutectoid: (αTi) -> Ti3Al + TiAl | (αTi): Al 0.396; Ti3Al: Al 0.382; TiAl: Al 0.467 | model | [3] Kattner 1992 | Table II, p. 4, row 20; `ORC-PPKJM6PW5F` |  |
| 1388 | peritectoid: β + α2 \<-> α | α2: Al 0.25, Ti 0.75; α: Al 0.24 | experimental | [1] Witusiewicz 2008; _cites Ouchi 1980_ | Table 4, p. 7, row 19; `ORC-4BYYAI3SFN` |  |
| 1387 | eutectoid: α \<-> α2 + γ | α: Al 0.392; α2: Al 0.377; γ: Al 0.478 | model | [1] Witusiewicz 2008; _cites Zhang 1997_ [doi](https://doi.org/10.1016/s0966-9795%2897%2900030-7) | Table 4, p. 7, row 30; `ORC-RDMYBLV2G4` |  |
| 1384.4 | eutectoid: hcp-A3 -> L10-AlTi + AlM-D019 | hcp-A3: Ti 0.595; L10-AlTi: Ti 0.518; AlM-D019: Ti 0.607 | model | [2] (ed.) 1998 | Table I, p. 109, row 8; `ORC-DDZKKGITAG` |  |
| 1384 | eutectoid: α \<-> α2 + γ | α: Al 0.405; α2: Al 0.393; γ: Al 0.482 | model | [1] Witusiewicz 2008; _cites Saunders 1998_ | Table 4, p. 7, row 31; `ORC-SWRJSFJIAD` |  |
| 1383 | eutectoid: α \<-> α2 + γ | α: Al 0.396; α2: Al 0.385; γ: Al 0.485 | experimental | [1] Witusiewicz 2008; _cites Bartz 1993_ | Table 4, p. 7, row 26; `ORC-O36TUD5ZDG` |  |
| 1383 | eutectoid: α \<-> α2 + γ | α: Al 0.39; α2: Al 0.375; γ: Al 0.48 | experimental | [1] Witusiewicz 2008; _cites Shull 1985_ | Table 4, p. 7, row 27; `ORC-VDGQGDLFUC` |  |
| 1380.15 | eutectoid: (αTi) -> Ti3Al + TiAl | Ti3Al: Al 0.37; TiAl: Al 0.48 | experimental | [3] Kattner 1992; _cites Mishurda_ | Table II, p. 4, row 22; `ORC-MEVILTSPBW` |  |
| 1373 | peritectoid: β + α2 \<-> α | β: Al 0.155; α2: Al 0.253; α: Al 0.235 | experimental | [1] Witusiewicz 2008; _cites Clark 1963_ | Table 4, p. 7, row 17; `ORC-6HUWPMTLNQ` |  |
| 1353 | peritectoid: β + α2 \<-> α | β: Al 0.15; α2: Al 0.225; α: Al 0.175 | experimental | [1] Witusiewicz 2008; _cites Kornilov 1976_ | Table 4, p. 7, row 20; `ORC-AUJCJXGARK` |  |
| 1268.81 | D023-Ti5Al11 -> TiAl2 + D022-TiAl3 | D023-Ti5Al11: Ti 0.3125; TiAl2: Ti 0.333333; D022-TiAl3: Ti 0.25 | model | [4] Liang 2024 | Table 3, p. 8, row 9; `ORC-FSKLRVXAYH` |  |
| 1268 | eutectoid: γ/1d-APS \<-> η + ε(h) or Ti5Al11 \<-> η + ε(h) or else ζ \<-> η + ε(h) | η: Al 0.666667, Ti 0.333333 | experimental | [1] Witusiewicz 2008; _cites Braun 1999_ | Table 4, p. 7, row 36; `ORC-NGX2C3DANB` |  |
| 1268 | eutectoid: γ/1d-APS \<-> η + ε(h) or Ti5Al11 \<-> η + ε(h) or else ζ \<-> η + ε(h) | η: Al 0.666667, Ti 0.333333 | model | [1] Witusiewicz 2008; _cites Grytsiv 2003_ [doi](https://doi.org/10.1361/105497103772084552) | Table 4, p. 7, row 39; `ORC-NVXX4HF2PU` |  |
| 1265 | eutectoid: γ/1d-APS \<-> η + ε(h) or Ti5Al11 \<-> η + ε(h) or else ζ \<-> η + ε(h) | γ/1d-APS: Al 0.714; η: Al 0.667; ε(h): Al 0.736 | model | [1] Witusiewicz 2008; _cites Zhang 1997_ [doi](https://doi.org/10.1016/s0966-9795%2897%2900030-7) | Table 4, p. 7, row 41; `ORC-VB7T57KPMI` |  |
| 1263.15 | Ti2Al5 -> r-TiAl2 + TiAl3 | Ti2Al5: Al 0.714286, Ti 0.285714; TiAl3: Al 0.75, Ti 0.25 | unspecified | [3] Kattner 1992; _cites Kaltenbach 1989_ | Table IV, p. 8, row 11; `ORC-27VMAB6QJY` |  |
| 1263.15 | Ti2Al5 -> r-TiAl2 + TiAl3 | Ti2Al5: Al 0.714; r-TiAl2: Al 0.667; TiAl3: Al 0.742 | model | [3] Kattner 1992 | Table IV, p. 8, row 10; `ORC-6LYIZVBABZ` |  |
| 1263.15 | eutectoid: Ti2Al5 -> TiAl2 + TiAl3 | Ti2Al5: Al 0.714; TiAl2: Al 0.667; TiAl3: Al 0.742 | model | [3] Kattner 1992 | Table II, p. 4, row 27; `ORC-GN2UOPWEJD` |  |
| 1263.15 | eutectoid: Ti2Al5 -> TiAl2 + TiAl3 | Ti2Al5: Al 0.714286, Ti 0.285714; TiAl2: Al 0.666667, Ti 0.333333; TiAl3: Al 0.75, Ti 0.25 | experimental | [3] Kattner 1992; _cites Kaltenbach 1989_ | Table II, p. 4, row 28; `ORC-QWRUJJK4TT` |  |
| 1263 | eutectoid: γ/1d-APS \<-> η + ε(h) or Ti5Al11 \<-> η + ε(h) or else ζ \<-> η + ε(h) | γ/1d-APS: Al 0.702; η: Al 0.667; ε(h): Al 0.751 | experimental | [1] Witusiewicz 2008; _cites Kaltenbach 1989_ | Table 4, p. 7, row 33; `ORC-AXQABCW3BS` |  |
| 1260 | eutectoid: γ/1d-APS \<-> η + ε(h) or Ti5Al11 \<-> η + ε(h) or else ζ \<-> η + ε(h) | γ/1d-APS: Al 0.68; η: Al 0.667; ε(h): Al 0.75 | model | [1] Witusiewicz 2008; _cites Saunders 1998_ | Table 4, p. 7, row 42; `ORC-3FMWHDEJ67` |  |
| 1259.8 | eutectoid: Al11Ti5 -> AlM\* + Al2Ti | Al11Ti5: Ti 0.32; AlM\*: Ti 0.25; Al2Ti: Ti 0.333 | model | [2] (ed.) 1998 | Table I, p. 109, row 2; `ORC-HKCVUHJVXS` |  |
| 1253 | eutectoid: γ/1d-APS \<-> η + ε(h) or Ti5Al11 \<-> η + ε(h) or else ζ \<-> η + ε(h) | η: Al 0.666667, Ti 0.333333 | experimental | [1] Witusiewicz 2008; _cites Kainuma 2005_ [doi](https://doi.org/10.1016/j.intermet.2004.12.028) | Table 4, p. 7, row 35; `ORC-B7AS5FKDB3` |  |
| 1249 | eutectoid: ζ \<-> η + ε(h) | ζ: Al 0.698; η: Al 0.673; ε(h): Al 0.748 | model | [1] Witusiewicz 2008 | Table 4, p. 7, row 43; `ORC-U5KQGPCOHV` |  |
| 1248 | eutectoid: γ/1d-APS \<-> η + ε(h) or Ti5Al11 \<-> η + ε(h) or else ζ \<-> η + ε(h) | γ/1d-APS: Al 0.715; η: Al 0.67; ε(h): Al 0.742 | model | [1] Witusiewicz 2008; _cites Schuster 2006_ [doi](https://doi.org/10.1361/154770306x109809) | Table 4, p. 7, row 40; `ORC-DAKKOAPQ3O` |  |
| 1248 | eutectoid: γ/1d-APS \<-> η + ε(h) or Ti5Al11 \<-> η + ε(h) or else ζ \<-> η + ε(h) | η: Al 0.666667, Ti 0.333333 | experimental | [1] Witusiewicz 2008; _cites Palm 1999_ | Table 4, p. 7, row 34; `ORC-OWFHF7WDCM` |  |
| 1243 | eutectoid: γ/1d-APS \<-> η + ε(h) or Ti5Al11 \<-> η + ε(h) or else ζ \<-> η + ε(h) | η: Al 0.666667, Ti 0.333333 | experimental | [1] Witusiewicz 2008; _cites Schuster 1990_ | Table 4, p. 7, row 37; `ORC-EY7K2Q3JRS` |  |
| 1223 | peritectoid: η + ε(h) \<-> ε(l) | η: Al 0.666667, Ti 0.333333 | model | [1] Witusiewicz 2008; _cites Grytsiv 2003_ [doi](https://doi.org/10.1361/105497103772084552) | Table 4, p. 7, row 45; `ORC-3IBZQHOHB7` |  |
| 1223 | eutectoid: γ/1d-APS \<-> η + ε(h) or Ti5Al11 \<-> η + ε(h) or else ζ \<-> η + ε(h) | η: Al 0.666667, Ti 0.333333 | experimental | [1] Witusiewicz 2008; _cites Raman 1965_ | Table 4, p. 7, row 38; `ORC-KCAAFUETYB` |  |
| 1223 | peritectoid: η + ε(h) \<-> ε(l) | η: Al 0.666667, Ti 0.333333; ε(h): Al 0.75; ε(l): Al 0.745 | experimental | [1] Witusiewicz 2008; _cites Braun 1999_ | Table 4, p. 7, row 44; `ORC-PLV3LIJEO2` |  |
| 1205 | peritectoid: η + ε(h) \<-> ε(l) | η: Al 0.673; ε(h): Al 0.748 | model | [1] Witusiewicz 2008 | Table 4, p. 7, row 46; `ORC-NVSDLHM6XK` |  |
| 1085.21 | Al2Ti + L10-TiAl -> Al5Ti3 | Al2Ti: Ti 0.333333; L10-TiAl: Ti 0.5; Al5Ti3: Ti 0.375 | model | [4] Liang 2024 | Table 3, p. 8, row 10; `ORC-C6OSISXKWH` |  |
| 1083 | peritectoid: γ + η \<-> Ti3Al5 | γ: Al 0.56; η: Al 0.665; Ti3Al5: Al 0.62 | experimental | [1] Witusiewicz 2008; _cites Grytsiv 2003_ [doi](https://doi.org/10.1361/105497103772084552) | Table 4, p. 7, row 47; `ORC-PGO7CJF6FO` |  |
| 1082 | peritectoid: γ + η \<-> Ti3Al5 | γ: Al 0.583; η: Al 0.651; Ti3Al5: Al 0.625 | model | [1] Witusiewicz 2008 | Table 4, p. 7, row 48; `ORC-DR5VFHE7O3` |  |
| 1008 | metatectic/catatectic: ε(h) \<-> ε(l) + L |  | model | [1] Witusiewicz 2008; _cites Grytsiv 2003_ [doi](https://doi.org/10.1361/105497103772084552) | Table 4, p. 7, row 52; `ORC-PA4WLFCASE` |  |
| 1008 | metatectic/catatectic: ε(h) \<-> ε(l) + L | ε(h): Al 0.75; ε(l): Al 0.745 | experimental | [1] Witusiewicz 2008; _cites Braun 1999_ | Table 4, p. 7, row 51; `ORC-SXV6NRGX4W` |  |
| 1007 | ε(h) -> ε(l) + L | ε(h): Ti 0.235; ε(l): Ti 0.245; L: Ti 0.002 | model | [1] Witusiewicz 2008 | Table 4, p. 8, row 1; `ORC-23IRDRQAYD` |  |
| 938.7 | peritectic: L + ε(l) -> (αAl) | L: Ti 0.001; ε(l): Ti 0.243; (αAl): Ti 0.008 | model | [1] Witusiewicz 2008 | Table 4, p. 8, row 6; `ORC-B5YOJUJBJV` |  |
| 938.25 | peritectic: L + TiAl3 -> (Al) | TiAl3: Al 0.75, Ti 0.25 | experimental | [3] Kattner 1992; _cites Fink 1931_ | Table II, p. 4, row 14; `ORC-KUK6L2QREX` |  |
| 938.2 | peritectic: L + ε(l) -> (αAl) | L: Ti 0.002; ε(l): Ti 0.249; (αAl): Ti 0.008 | model | [1] Witusiewicz 2008; _cites Zhang 1997_ | Table 4, p. 8, row 4; `ORC-SOICIV5G3I` |  |
| 938.15 | L + D022-TiAl3 -> FCC-Al | D022-TiAl3: Ti 0.25 | model | [4] Liang 2024 | Table 3, p. 8, row 12; `ORC-CW7WZEOXCB` |  |
| 938.15 | peritectic: L + TiAl3 -> (Al) | L: Al 0.999; TiAl3: Al 0.75; (Al): Al 0.993 | experimental | [3] Kattner 1992; _cites Cisse 1974_ [doi](https://doi.org/10.1007/bf02644659) | Table II, p. 4, row 15; `ORC-RBR4HWLACV` |  |
| 938 | peritectic: L + ε(l) -> (αAl) | L: Ti 8.000e-4; ε(l): Ti 0.245; (αAl): Ti 0.008 | model | [1] Witusiewicz 2008; _cites Schuster 2006_ | Table 4, p. 8, row 3; `ORC-CKGWQRJLHN` |  |
| 938 | peritectic: L + ε(l) -> (αAl) | L: Ti 0.001; ε(l): Ti 0.25; (αAl): Ti 0.007 | experimental | [1] Witusiewicz 2008; _cites Fink 1931_ | Table 4, p. 8, row 2; `ORC-XNFF5DAVHJ` |  |
| 937.35 | peritectic: L + TiAl3 -> (Al) | L: Al 0.999; TiAl3: Al 0.75; (Al): Al 0.994 | model | [3] Kattner 1992 | Table II, p. 4, row 13; `ORC-NOPBVVOZ25` |  |
| 934.2 | other: Liquid + AlM-D0\*22 \<-> fcc-A1 | Liquid: Ti 0.001; AlM-D0\*22: Ti 0.25; fcc-A1: Ti 0 | model | [2] (ed.) 1998 | Table I, p. 109, row 4; `ORC-FLN7WHJVWL` |  |
| 934.2 | peritectic: L + ε(l) -> (αAl) | L: Ti 0.001; ε(l): Ti 0.25; (αAl): Ti 0 | model | [1] Witusiewicz 2008; _cites Saunders 1998_ | Table 4, p. 8, row 5; `ORC-I6RBIDTKE6` |  |
| 911 | polymorphic: ε(h) \<-> ε(l) |  | experimental | [1] Witusiewicz 2008; _cites F 1973_ | Table 4, p. 7, row 49; `ORC-6NKOBMAQH5` |  |
| 873 | polymorphic: ε(h) \<-> ε(l) |  | experimental | [1] Witusiewicz 2008; _cites Rao 1983_ [doi](https://doi.org/10.1007/bf02643738) | Table 4, p. 7, row 50; `ORC-CSE67RYGAW` |  |

## Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from [dft_parity.json](https://data.orchid-project.org/literature/dft_parity.json).

Table: Enthalpies of formation, Al–Ti system (49)

| Phase | Compound | Value | T (K) | Class | MP DFT (kJ/mol-atom) | OQMD DFT (kJ/mol-atom) | Source | Location | Quote |
|---|---|---:|---:|---|---:|---:|---|---|---|
| BCC |  | -29.8065 kJ/mol-atom |  | model |  |  | [4] Liang 2024; _cites Witusiewicz 2008_ [doi](https://doi.org/10.1016/j.jallcom.2007.10.061) | Table 2, p. 6, row 2; `ORC-43Z46ZKRYM` |  |
| BCC |  | -25.876 kJ/mol-atom |  | DFT |  |  | [4] Liang 2024; _cites Ghosh 2005_ [doi](https://doi.org/10.1016/j.actamat.2005.03.028) | Table 2, p. 6, row 1; `ORC-PRZTW522S2` |  |
| BCC |  | -25.8759 kJ/mol-atom |  | model |  |  | [4] Liang 2024 | Table 2, p. 6, row 3; `ORC-VIZZSQKQM7` |  |
| BCC |  | -15.4001 kJ/mol-atom |  | DFT |  |  | [4] Liang 2024; _cites Curtarolo 2012_ [doi](https://doi.org/10.1016/j.commatsci.2012.02.002) | Table 2, p. 6, row 6; `ORC-S4SWHJRGEG` |  |
| BCC |  | -15.3986 kJ/mol-atom |  | model |  |  | [4] Liang 2024 | Table 2, p. 6, row 7; `ORC-GJ7VIKIWDP` |  |
| BCC |  | -9.11182 kJ/mol-atom |  | model |  |  | [4] Liang 2024 | Table 2, p. 6, row 5; `ORC-QYO3CRCGQ5` |  |
| BCC |  | -9.10445 kJ/mol-atom |  | DFT |  |  | [4] Liang 2024; _cites Curtarolo 2012_ [doi](https://doi.org/10.1016/j.commatsci.2012.02.002) | Table 2, p. 6, row 4; `ORC-UIRJ25LQEE` |  |
| BCC |  | 3.30257 kJ/mol-atom |  | DFT |  |  | [4] Liang 2024; _cites Curtarolo 2012_ [doi](https://doi.org/10.1016/j.commatsci.2012.02.002) | Table 2, p. 6, row 8; `ORC-BDT6YBXLFQ` |  |
| BCC |  | 3.30933 kJ/mol-atom |  | model |  |  | [4] Liang 2024 | Table 2, p. 6, row 9; `ORC-GASXPKKG3X` |  |
| Laves C14 |  | -33.1918 kJ/mol-atom | 0 | DFT |  |  | [4] Liang 2024 | Table 2, p. 6, row 42; `ORC-ANTPBC2LYC` |  |
| Laves C14 |  | -33.1918 kJ/mol-atom |  | model |  |  | [4] Liang 2024 | Table 2, p. 6, row 43; `ORC-Z4AKVFORGU` |  |
| Laves C14 |  | -22.8676 kJ/mol-atom | 0 | DFT |  |  | [4] Liang 2024 | Table 2, p. 6, row 48; `ORC-2R3RSFLVML` |  |
| Laves C14 |  | -22.8676 kJ/mol-atom |  | model |  |  | [4] Liang 2024 | Table 2, p. 6, row 49; `ORC-PEBHKVQA35` |  |
| Laves C14 |  | -4.63142 kJ/mol-atom |  | model |  |  | [4] Liang 2024 | Table 2, p. 6, row 51; `ORC-2GHWI74KQT` |  |
| Laves C14 |  | -4.63142 kJ/mol-atom | 0 | DFT |  |  | [4] Liang 2024 | Table 2, p. 6, row 50; `ORC-SVJTYZQSOO` |  |
| Laves C14 |  | 1.44732 kJ/mol-atom |  | model |  |  | [4] Liang 2024 | Table 2, p. 6, row 47; `ORC-WPZUOC2AWF` |  |
| Laves C14 |  | 1.44732 kJ/mol-atom | 0 | DFT |  |  | [4] Liang 2024 | Table 2, p. 6, row 46; `ORC-YWMCF3MY3L` |  |
| Laves C14 |  | 3.76303 kJ/mol-atom |  | model |  |  | [4] Liang 2024 | Table 2, p. 6, row 45; `ORC-METZC673YV` |  |
| Laves C14 |  | 3.76303 kJ/mol-atom | 0 | DFT |  |  | [4] Liang 2024 | Table 2, p. 6, row 44; `ORC-PHBWW54AYA` |  |
| Laves C14 |  | 7.71903 kJ/mol-atom | 0 | DFT |  |  | [4] Liang 2024 | Table 2, p. 6, row 40; `ORC-FFQKM5UWR6` |  |
| Laves C14 |  | 7.71903 kJ/mol-atom |  | model |  |  | [4] Liang 2024 | Table 2, p. 6, row 41; `ORC-L5I2U7M6AL` |  |
| Laves C14 |  | 12.4469 kJ/mol-atom | 0 | DFT |  |  | [4] Liang 2024 | Table 2, p. 6, row 38; `ORC-QCFMJ36AAG` |  |
| Laves C14 |  | 12.4469 kJ/mol-atom |  | model |  |  | [4] Liang 2024 | Table 2, p. 6, row 39; `ORC-WUFFIC4Y54` |  |
| Ti3Al |  | -30.8727 kJ/mol-atom |  | DFT |  |  | [4] Liang 2024; _cites Curtarolo 2012_ [doi](https://doi.org/10.1016/j.commatsci.2012.02.002) | Table 2, p. 6, row 31; `ORC-MJOUQEISRQ` |  |
| Ti3Al | [AlTi3](https://data.orchid-project.org/compounds/AlTi3.html) | -27.395 kJ/mol-atom |  | model | -26.934 (mp-aaaaacsd) | -31.691 (oqmd-10598) | [4] Liang 2024 | Table 2, p. 6, row 30; `ORC-WDNDWVNF63` |  |
| Ti3Al |  | -27.395 kJ/mol-atom |  | DFT |  |  | [4] Liang 2024; _cites Ghosh 2005_ [doi](https://doi.org/10.1016/j.actamat.2005.03.028) | Table 2, p. 6, row 28; `ORC-YUR327YIFN` |  |
| Ti3Al | [AlTi3](https://data.orchid-project.org/compounds/AlTi3.html) | -27.0479 kJ/mol-atom |  | model | -26.934 (mp-aaaaacsd) | -31.691 (oqmd-10598) | [4] Liang 2024; _cites Witusiewicz 2008_ [doi](https://doi.org/10.1016/j.jallcom.2007.10.061) | Table 2, p. 6, row 29; `ORC-2C42LMQMWS` |  |
| Ti3Al | [AlTi3](https://data.orchid-project.org/compounds/AlTi3.html) | -20.3574 kJ/mol-atom |  | model | -26.934 (mp-aaaaacsd) | -31.691 (oqmd-10598) | [4] Liang 2024; _cites Witusiewicz 2008_ [doi](https://doi.org/10.1016/j.jallcom.2007.10.061) | Table 2, p. 6, row 32; `ORC-3SYLGJCCF5` |  |
| Ti3Al | [AlTi3](https://data.orchid-project.org/compounds/AlTi3.html) | 30.8727 kJ/mol-atom |  | model | -26.934 (mp-aaaaacsd) | -31.691 (oqmd-10598) | [4] Liang 2024 | Table 2, p. 6, row 33; `ORC-KWPV2VO5Q6` |  |
| Ti3Al5 | [Al5Ti3](https://data.orchid-project.org/compounds/Al5Ti3.html) | -41.64 kJ/mol-atom |  | model | -39.557 (mp-aaacrglg) | -42.592 (oqmd-2170248) | [4] Liang 2024 | Table 2, p. 6, row 24; `ORC-6576GZ7W3D` |  |
| Ti3Al5 |  | -41.64 kJ/mol-atom |  | DFT |  |  | [4] Liang 2024; _cites Ghosh 2005_ [doi](https://doi.org/10.1016/j.actamat.2005.03.028) | Table 2, p. 6, row 22; `ORC-UQ2DIGIMVW` |  |
| Ti3Al5 | [Al5Ti3](https://data.orchid-project.org/compounds/Al5Ti3.html) | -38.9971 kJ/mol-atom |  | model | -39.557 (mp-aaacrglg) | -42.592 (oqmd-2170248) | [4] Liang 2024; _cites Witusiewicz 2008_ [doi](https://doi.org/10.1016/j.jallcom.2007.10.061) | Table 2, p. 6, row 23; `ORC-7YXPL4SL5B` |  |
| TiAl | [AlTi](https://data.orchid-project.org/compounds/AlTi.html) | -39.712 kJ/mol-atom |  | model | -39.264 (mp-aaaaacxd) | -42.07 (oqmd-18721) | [4] Liang 2024 | Table 2, p. 6, row 27; `ORC-B7CO6R2YG7` |  |
| TiAl |  | -39.712 kJ/mol-atom |  | DFT |  |  | [4] Liang 2024; _cites Ghosh 2005_ [doi](https://doi.org/10.1016/j.actamat.2005.03.028) | Table 2, p. 6, row 25; `ORC-T6CKW7SYVB` |  |
| TiAl | [AlTi](https://data.orchid-project.org/compounds/AlTi.html) | -37.5039 kJ/mol-atom |  | model | -39.264 (mp-aaaaacxd) | -42.07 (oqmd-18721) | [4] Liang 2024; _cites Witusiewicz 2008_ [doi](https://doi.org/10.1016/j.jallcom.2007.10.061) | Table 2, p. 6, row 26; `ORC-NKVSZUPHL4` |  |
| TiAl2 | [Al2Ti](https://data.orchid-project.org/compounds/Al2Ti.html) | -41.1038 kJ/mol-atom |  | model | -41.623 (mp-aaabghuv) | -43.383 (oqmd-18487) | [4] Liang 2024 | Table 2, p. 6, row 12; `ORC-BDOAJNKGK7` |  |
| TiAl2 |  | -41.1038 kJ/mol-atom |  | DFT |  |  | [4] Liang 2024; _cites Tang 2011_ [doi](https://doi.org/10.1016/j.commatsci.2010.12.001) | Table 2, p. 6, row 10; `ORC-KBECAONIIO` |  |
| TiAl2 | [Al2Ti](https://data.orchid-project.org/compounds/Al2Ti.html) | -39.0556 kJ/mol-atom |  | model | -41.623 (mp-aaabghuv) | -43.383 (oqmd-18487) | [4] Liang 2024; _cites Witusiewicz 2008_ [doi](https://doi.org/10.1016/j.jallcom.2007.10.061) | Table 2, p. 6, row 11; `ORC-RKPHE67U5I` |  |
| TiAl2 | [Al2Ti](https://data.orchid-project.org/compounds/Al2Ti.html) | -27.8233 kJ/mol-atom |  | model | -41.623 (mp-aaabghuv) | -43.383 (oqmd-18487) | [4] Liang 2024 | Table 2, p. 6, row 15; `ORC-JDLHMCMBNF` |  |
| TiAl2 |  | -27.8233 kJ/mol-atom |  | DFT |  |  | [4] Liang 2024; _cites Curtarolo 2012_ [doi](https://doi.org/10.1016/j.commatsci.2012.02.002) | Table 2, p. 6, row 13; `ORC-HYZE77CKMI` |  |
| TiAl2 | [Al2Ti](https://data.orchid-project.org/compounds/Al2Ti.html) | -22.4735 kJ/mol-atom |  | model | -41.623 (mp-aaabghuv) | -43.383 (oqmd-18487) | [4] Liang 2024; _cites Witusiewicz 2008_ [doi](https://doi.org/10.1016/j.jallcom.2007.10.061) | Table 2, p. 6, row 14; `ORC-H6JMF22TDY` |  |
| TiAl3 | [Al3Ti](https://data.orchid-project.org/compounds/Al3Ti.html) | -38.895 kJ/mol-atom |  | model | -38.428 (mp-aaabexdj) | -40.324 (oqmd-2170264) | [4] Liang 2024 | Table 2, p. 6, row 18; `ORC-OCF44UH54L` |  |
| TiAl3 |  | -38.895 kJ/mol-atom |  | DFT |  |  | [4] Liang 2024; _cites Ghosh 2005_ [doi](https://doi.org/10.1016/j.actamat.2005.03.028) | Table 2, p. 6, row 16; `ORC-VC4VM33UXC` |  |
| TiAl3 | [Al3Ti](https://data.orchid-project.org/compounds/Al3Ti.html) | -36.905 kJ/mol-atom |  | model | -38.428 (mp-aaabexdj) | -40.324 (oqmd-2170264) | [4] Liang 2024; _cites Witusiewicz 2008_ [doi](https://doi.org/10.1016/j.jallcom.2007.10.061) | Table 2, p. 6, row 17; `ORC-DOF7HLCISA` |  |
| TiAl3 |  | -24.4297 kJ/mol-atom |  | DFT |  |  | [4] Liang 2024; _cites Curtarolo 2012_ [doi](https://doi.org/10.1016/j.commatsci.2012.02.002) | Table 2, p. 6, row 19; `ORC-2VUNA4DF5Y` |  |
| TiAl3 | [Al3Ti](https://data.orchid-project.org/compounds/Al3Ti.html) | -24.4297 kJ/mol-atom |  | model | -38.428 (mp-aaabexdj) | -40.324 (oqmd-2170264) | [4] Liang 2024 | Table 2, p. 6, row 21; `ORC-WFC63SHNOF` |  |
| TiAl3 | [Al3Ti](https://data.orchid-project.org/compounds/Al3Ti.html) | -14.0035 kJ/mol-atom |  | model | -38.428 (mp-aaabexdj) | -40.324 (oqmd-2170264) | [4] Liang 2024; _cites Witusiewicz 2008_ [doi](https://doi.org/10.1016/j.jallcom.2007.10.061) | Table 2, p. 6, row 20; `ORC-XRUSDLCKNT` |  |
| τ3 |  | -36.583 kJ/mol-atom |  | model |  |  | [4] Liang 2024 | Table 2, p. 6, row 35; `ORC-3WOCFWA5YP` |  |
| τ3 |  | -36.583 kJ/mol-atom |  | DFT |  |  | [4] Liang 2024; _cites Ghosh 2005_ [doi](https://doi.org/10.1016/j.actamat.2005.03.028) | Table 2, p. 6, row 34; `ORC-4KH6SWHQ3O` |  |

## Other properties

### Phase transition (136)

Table: Phase transition, Al–Ti system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase transition | 1204 K | 1204 | α2 ↔ α2 + α; _alloy: Al 0.225, Ti 0.775_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 9; `ORC-VKYSY32VGU` |  |
| Phase transition | 1253 K | 1253 | α2 ↔ α2 + α; _alloy: Al 0.225, Ti 0.775_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 8; `ORC-2VHMHDEF3P` |  |
| Phase transition | 1275 K | 1275 | α ↔ α + β; _alloy: Al 0.1, Ti 0.9_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 3; `ORC-X4U7CNQDX4` |  |
| Phase transition | 1278 K | 1278 | α ↔ α + β; _alloy: Al 0.1, Ti 0.9_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 1; `ORC-4IRSDAOUWA` |  |
| Phase transition | 1278 K | 1278 | α ↔ α + β; _alloy: Al 0.1, Ti 0.9_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 2; `ORC-QTWQ3654BL` |  |
| Phase transition | 1284 K | 1284 | α + β ↔ β; _alloy: Al 0.1, Ti 0.9_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 4; `ORC-5YFZJ2G4TR` |  |
| Phase transition | 1295 K | 1295 | α2 + α ↔ α; _alloy: Al 0.225, Ti 0.775_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 13; `ORC-3IQJF67KAY` |  |
| Phase transition | 1318 K | 1318 | α2 + α ↔ α; _alloy: Al 0.225, Ti 0.775_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 12; `ORC-5CY6NUZSVG` |  |
| Phase transition | 1318 K | 1318 | α2 + α ↔ α; _alloy: Al 0.225, Ti 0.775_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 10; `ORC-XGBDJWIEIZ` |  |
| Phase transition | 1338 K | 1338 | α2 + α ↔ α; _alloy: Al 0.225, Ti 0.775_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 11; `ORC-NOJGFM7OPK` |  |
| Phase transition | 1384 K | 1384 | α ↔ α + β; _alloy: Al 0.225, Ti 0.775_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 17; `ORC-P7KUQ2R6XJ` |  |
| Phase transition | 1387 K | 1387 | α ↔ α + β; _alloy: Al 0.225, Ti 0.775_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 16; `ORC-G2AMVMYASQ` |  |
| Phase transition | 1387 K | 1387 | α ↔ α + β; _alloy: Al 0.225, Ti 0.775_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 14; `ORC-ZAFO2VUEIC` |  |
| Phase transition | 1392 K | 1392 | α + β ↔ β; _alloy: Al 0.225, Ti 0.775_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 18; `ORC-N65KR2ODYP` |  |
| Phase transition | 1394.15 K | 1394.15 | α2 + α; _alloy: Al 0.414, Ti 0.586_ | experimental | [5] Ohnuma 2000 | Table 2, p. 3, row 12; `ORC-UB343AV3SL` |  |
| Phase transition | 1405.15 K | 1405.15 | α2 + α; _alloy: Al 0.399, Ti 0.601_ | experimental | [5] Ohnuma 2000 | Table 2, p. 3, row 10; `ORC-OZ7KY624LJ` |  |
| Phase transition | 1420.15 K | 1420.15 | α2 + α; _alloy: Al 0.377, Ti 0.623_ | experimental | [5] Ohnuma 2000 | Table 2, p. 3, row 8; `ORC-RWSKYZYVTU` |  |
| Phase transition | 1436.15 K | 1436.15 | α2 + α; _alloy: Al 0.301, Ti 0.699_ | experimental | [5] Ohnuma 2000 | Table 2, p. 3, row 1; `ORC-NOOZAOCTTE` |  |
| Phase transition | 1437.28 K | 1437.28 | α-Ti -> D019-Ti3Al; _D019-Ti3Al: Ti 0.75_ | model | [4] Liang 2024 | Table 3, p. 8, row 3; `ORC-UH5D7BORP4` |  |
| Phase transition | 1440.15 K | 1440.15 | α2 + α; _alloy: Al 0.35, Ti 0.65_ | experimental | [5] Ohnuma 2000 | Table 2, p. 3, row 5; `ORC-AZAZRVNFUV` |  |
| Phase transition | 1442.15 K | 1442.15 | α2 + α; _alloy: Al 0.326, Ti 0.674_ | experimental | [5] Ohnuma 2000 | Table 2, p. 3, row 2; `ORC-QDGRS6XZG6` |  |
| Phase transition | 1443 K | 1443 | α ↔ α + β; _alloy: Al 0.225, Ti 0.775_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 15; `ORC-KTGHND5ONJ` |  |
| Phase transition | 1452 K | 1452 | congruent transformation: AlM-D019 -> hcp-A3; _AlM-D019: Ti 0.682; hcp-A3: Ti 0.682_ | model | [2] (ed.) 1998 | Table I, p. 109, row 9; `ORC-SNT4ELSQD4` |  |
| Phase transition | 1457.15 K | 1457.15 | α + β2; _alloy: Al 0.326, Ti 0.674_ | experimental | [5] Ohnuma 2000 | Table 2, p. 3, row 3; `ORC-3NEB34LYX7` |  |
| Phase transition | 1476 K | 1476 | γ ↔ γ + α; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 28; `ORC-M4HDWMXF7V` |  |
| Phase transition | 1476 K | 1476 | γ ↔ γ + α; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 56; `ORC-XZTNJDLKPF` |  |
| Phase transition | 1483.15 K | 1483.15 | α + β2; _alloy: Al 0.35, Ti 0.65_ | experimental | [5] Ohnuma 2000 | Table 2, p. 3, row 6; `ORC-TTUDDPNDMJ` |  |
| Phase transition | 1487 K | 1487 | γ ↔ γ + α; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 29; `ORC-RRPI5YF3D6` |  |
| Phase transition | 1488 K | 1488 | γ ↔ γ + α; _alloy: Al 0.475, Ti 0.525_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 31; `ORC-VCARRQTAWP` |  |
| Phase transition | 1490 K | 1490 | γ ↔ γ + α; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 30; `ORC-EG6MHXCK4T` |  |
| Phase transition | 1493 K | 1493 | γ ↔ γ + α; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 27; `ORC-BNGUCZ3CO4` |  |
| Phase transition | 1495.56 K | 1495.56 | D023-Ti5Al11 -> TiAl2; _D023-Ti5Al11: Ti 0.3125; TiAl2: Ti 0.333333_ | model | [4] Liang 2024 | Table 3, p. 8, row 7; `ORC-GUID2IVO4O` |  |
| Phase transition | 1500 K | 1500 | γ ↔ γ + α; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 26; `ORC-JWPZTC2SLO` |  |
| Phase transition | 1526.15 K | 1526.15 | α + β2; _alloy: Al 0.377, Ti 0.623_ | experimental | [5] Ohnuma 2000 | Table 2, p. 3, row 9; `ORC-7FE6N5DHMA` |  |
| Phase transition | 1530 K | 1530 | γ ↔ γ + α; _alloy: Al 0.505, Ti 0.495_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 79; `ORC-MY3X5KA2ZE` |  |
| Phase transition | 1533 K | 1533 | γ ↔ γ + α; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 55; `ORC-KZKRQ6WERR` |  |
| Phase transition | 1540.15 K | 1540.15 | β2 + β; _alloy: Al 0.326, Ti 0.674_ | experimental | [5] Ohnuma 2000 | Table 2, p. 3, row 4; `ORC-5BWIOFISOJ` |  |
| Phase transition | 1553 K | 1553 | γ ↔ γ + α; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 54; `ORC-VVZEXWAOXR` |  |
| Phase transition | 1563.15 K | 1563.15 | α + β2; _alloy: Al 0.399, Ti 0.601_ | experimental | [5] Ohnuma 2000 | Table 2, p. 3, row 11; `ORC-SDCD76FB7T` |  |
| Phase transition | 1567.56 K | 1567.56 | β-Ti -> BCC_B2 | model | [4] Liang 2024 | Table 3, p. 8, row 13; `ORC-RLIFYNQDC3` |  |
| Phase transition | 1575 K | 1575 | γ ↔ γ + α; _alloy: Al 0.505, Ti 0.495_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 78; `ORC-4XVR4UI72O` |  |
| Phase transition | 1579 K | 1579 | γ ↔ γ + α; _alloy: Al 0.49, Ti 0.51_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 57; `ORC-MQF4BWINZ5` |  |
| Phase transition | 1591.15 K | 1591.15 | β2 + β; _alloy: Al 0.35, Ti 0.65_ | experimental | [5] Ohnuma 2000 | Table 2, p. 3, row 7; `ORC-RX5YVSMJAX` |  |
| Phase transition | 1592.15 K | 1592.15 | α + β2; _alloy: Al 0.414, Ti 0.586_ | experimental | [5] Ohnuma 2000 | Table 2, p. 3, row 13; `ORC-QZBD4KOBZX` |  |
| Phase transition | 1595 K | 1595 | γ + α ↔ α; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 34; `ORC-CQ54LTCWFZ` |  |
| Phase transition | 1595 K | 1595 | ε(h) ↔ L + ε(h); _alloy: Al 0.753, Ti 0.247_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 112; `ORC-6GEVTJ32GI` |  |
| Phase transition | 1614 K | 1614 | γ + α ↔ α; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 35; `ORC-V6ZLPFTJ3T` |  |
| Phase transition | 1614 K | 1614 | ε(h) ↔ L + ε(h); _alloy: Al 0.753, Ti 0.247_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 109; `ORC-RCW54RU7FJ` |  |
| Phase transition | 1614 K | 1614 | ε(h) ↔ L + ε(h); _alloy: Al 0.753, Ti 0.247_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 111; `ORC-YCPXB26LYA` |  |
| Phase transition | 1620 K | 1620 | ε(h) ↔ L + ε(h); _alloy: Al 0.753, Ti 0.247_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 110; `ORC-OIIMX4UHJW` |  |
| Phase transition | 1627 K | 1627 | γ ↔ γ + α; _alloy: Al 0.505, Ti 0.495_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 80; `ORC-NHFXTCU3RO` |  |
| Phase transition | 1638 K | 1638 | ε(h) ↔ L + ε(h); _alloy: Al 0.753, Ti 0.247_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 108; `ORC-I2KBMSW2JG` |  |
| Phase transition | 1644 K | 1644 | γ + α ↔ α; _alloy: Al 0.475, Ti 0.525_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 37; `ORC-6XCXRASB7H` |  |
| Phase transition | 1645 K | 1645 | γ + α ↔ α; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 32; `ORC-4PA7QAYTVQ` |  |
| Phase transition | 1647 K | 1647 | γ + α ↔ α; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 36; `ORC-NQPZWGK26E` |  |
| Phase transition | 1647 K | 1647 | γ + α ↔ α; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 33; `ORC-ROMZLMFL4B` |  |
| Phase transition | 1655 K | 1655 | γ + α ↔ α; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 59; `ORC-NXR56AHODV` |  |
| Phase transition | 1666.5 K | 1666.5 | γ + α ↔ α; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 62; `ORC-K6VS24Q4SW` |  |
| Phase transition | 1667 K | 1667 | L + ε(h) ↔ L; _alloy: Al 0.753, Ti 0.247_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 115; `ORC-BXGSKAF5P3` |  |
| Phase transition | 1669 K | 1669 | L + ε(h) ↔ L; _alloy: Al 0.753, Ti 0.247_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 117; `ORC-B5X7LVHHQG` |  |
| Phase transition | 1669 K | 1669 | γ + α ↔ α; _alloy: Al 0.505, Ti 0.495_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 82; `ORC-XFUIXAOUGC` |  |
| Phase transition | 1669 K | 1669 | ε ↔ L + ζ; _alloy: Al 0.735, Ti 0.265_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 103; `ORC-ARBC2B47IX` |  |
| Phase transition | 1671 K | 1671 | L + ε(h) ↔ L; _alloy: Al 0.753, Ti 0.247_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 116; `ORC-MA4EJIVX2Z` |  |
| Phase transition | 1674 K | 1674 | γ + α ↔ α; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 61; `ORC-PWCMZRU23N` |  |
| Phase transition | 1675 K | 1675 | L + ε(h) ↔ L; _alloy: Al 0.753, Ti 0.247_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 114; `ORC-J2CJX3NOB2` |  |
| Phase transition | 1676 K | 1676 | L + ζ ↔ L; _alloy: Al 0.735, Ti 0.265_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 107; `ORC-FIVOGG3H4V` |  |
| Phase transition | 1678 K | 1678 | γ + α ↔ α; _alloy: Al 0.49, Ti 0.51_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 63; `ORC-VJ2GMWAIYP` |  |
| Phase transition | 1678 K | 1678 | γ + α ↔ α; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 58; `ORC-ZFJHC3BASC` |  |
| Phase transition | 1678 K | 1678 | ε ↔ L + ζ; _alloy: Al 0.735, Ti 0.265_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 102; `ORC-Z5UVILQAXN` |  |
| Phase transition | 1683 K | 1683 | L + ε(h) ↔ L; _alloy: Al 0.753, Ti 0.247_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 113; `ORC-BOUAKREFSP` |  |
| Phase transition | 1683 K | 1683 | L + ζ ↔ L; _alloy: Al 0.735, Ti 0.265_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 105; `ORC-2EMNVATDTP` |  |
| Phase transition | 1683 K | 1683 | L + ζ ↔ L; _alloy: Al 0.735, Ti 0.265_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 106; `ORC-FFEZHNTGQG` |  |
| Phase transition | 1683 K | 1683 | ε ↔ L + ζ; _alloy: Al 0.735, Ti 0.265_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 101; `ORC-4MFCZCP5AK` |  |
| Phase transition | 1686.5 K | 1686.5 | γ + α ↔ α; _alloy: Al 0.505, Ti 0.495_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 83; `ORC-I44JDQQOZG` |  |
| Phase transition | 1702 K | 1702 | α ↔ L + α; _alloy: Al 0.505, Ti 0.495_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 86; `ORC-PYHRLG5BCI` |  |
| Phase transition | 1704 K | 1704 | γ + α ↔ α; _alloy: Al 0.505, Ti 0.495_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 81; `ORC-YAM54Z5MXQ` |  |
| Phase transition | 1709 K | 1709 | γ + α ↔ α; _alloy: Al 0.505, Ti 0.495_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 84; `ORC-N3UWHYGHG7` |  |
| Phase transition | 1713 K | 1713 | γ ↔ L + γ; _alloy: Al 0.55, Ti 0.45_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 94; `ORC-6LGGCKIFG2` |  |
| Phase transition | 1718 K | 1718 | L + ζ ↔ L; _alloy: Al 0.735, Ti 0.265_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 118; `ORC-BXZODI66ZH` |  |
| Phase transition | 1723 K | 1723 | L + γ ↔ L; _alloy: Al 0.55, Ti 0.45_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 99; `ORC-5PRNRHLC2D` |  |
| Phase transition | 1723 K | 1723 | L + γ ↔ L; _alloy: Al 0.55, Ti 0.45_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 98; `ORC-Q4QWONS66D` |  |
| Phase transition | 1723 K | 1723 | γ ↔ L + γ; _alloy: Al 0.55, Ti 0.45_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 95; `ORC-4EAIOGVGTY` |  |
| Phase transition | 1723 K | 1723 | γ ↔ L + γ; _alloy: Al 0.55, Ti 0.45_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 93; `ORC-GJCJ3FR3N3` |  |
| Phase transition | 1728 K | 1728 | L + ζ ↔ L; _alloy: Al 0.735, Ti 0.265_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 104; `ORC-FE4FIATYDU` |  |
| Phase transition | 1728 K | 1728 | γ ↔ L + γ; _alloy: Al 0.55, Ti 0.45_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 96; `ORC-LORXPC63YC` |  |
| Phase transition | 1729 K | 1729 | L + γ ↔ L; _alloy: Al 0.55, Ti 0.45_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 100; `ORC-TJOQJ7RXMX` |  |
| Phase transition | 1732 K | 1732 | α ↔ L + α; _alloy: Al 0.505, Ti 0.495_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 85; `ORC-CLLVR3XXMU` |  |
| Phase transition | 1732 K | 1732 | α ↔ L + α; _alloy: Al 0.505, Ti 0.495_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 87; `ORC-CVGOL2NLAZ` |  |
| Phase transition | 1737 K | 1737 | α ↔ L + α; _alloy: Al 0.505, Ti 0.495_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 88; `ORC-WWKJFZ3LGA` |  |
| Phase transition | 1744 K | 1744 | L + α ↔ L + β; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 45; `ORC-GU4ATCF62I` |  |
| Phase transition | 1747 K | 1747 | α ↔ L + α; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 65; `ORC-JVXKBBZ3KI` |  |
| Phase transition | 1747 K | 1747 | α ↔ L + α; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 66; `ORC-ZKOKMU2I7R` |  |
| Phase transition | 1748 K | 1748 | α ↔ L + α; _alloy: Al 0.49, Ti 0.51_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 67; `ORC-BPLDYSODNP` |  |
| Phase transition | 1751 K | 1751 | L + α ↔ L + β; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 44; `ORC-QTXTSALM5H` |  |
| Phase transition | 1753 K | 1753 | L + γ ↔ L; _alloy: Al 0.55, Ti 0.45_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 97; `ORC-LGFN53JAVB` |  |
| Phase transition | 1754 K | 1754 | α ↔ L + α; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 38; `ORC-IZMVHWS3NW` |  |
| Phase transition | 1755 K | 1755 | L + α ↔ L; _alloy: Al 0.505, Ti 0.495_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 90; `ORC-LUQMXNS4XI` |  |
| Phase transition | 1756 K | 1756 | α ↔ L + α; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 39; `ORC-KA2WKEEZC7` |  |
| Phase transition | 1756 K | 1756 | α ↔ L + α; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 40; `ORC-MPIKYR4Y4P` |  |
| Phase transition | 1757 K | 1757 | L + α ↔ L; _alloy: Al 0.505, Ti 0.495_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 92; `ORC-MPS6OMVKDM` |  |
| Phase transition | 1757 K | 1757 | L + α ↔ L + β; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 69; `ORC-ZIOC2OFREQ` |  |
| Phase transition | 1758 K | 1758 | α ↔ L + α; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 64; `ORC-KQIB56XPM7` |  |
| Phase transition | 1758 K | 1758 | α ↔ L + α; _alloy: Al 0.475, Ti 0.525_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 41; `ORC-NVRWGARVUV` |  |
| Phase transition | 1761 K | 1761 | L + α ↔ L + β; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 43; `ORC-JD7DZ44FLJ` |  |
| Phase transition | 1761 K | 1761 | L + α ↔ L + β; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 46; `ORC-WDXOXRQKOK` |  |
| Phase transition | 1764 K | 1764 | L + α ↔ L + β; _alloy: Al 0.49, Ti 0.51_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 71; `ORC-APTL4PVYCD` |  |
| Phase transition | 1764 K | 1764 | L + α ↔ L + β; _alloy: Al 0.475, Ti 0.525_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 47; `ORC-BUD6OO7NZB` |  |
| Phase transition | 1764.5 K | 1764.5 | L + α ↔ L + β; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 70; `ORC-7EDD7QOLBD` |  |
| Phase transition | 1767 K | 1767 | L + α ↔ L + β; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 42; `ORC-SC7S73P4O2` |  |
| Phase transition | 1768 K | 1768 | L + β ↔ L; _alloy: Al 0.49, Ti 0.51_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 77; `ORC-BW2I4XFOSS` |  |
| Phase transition | 1768 K | 1768 | L + β ↔ L; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 75; `ORC-TWDZXPR6LW` |  |
| Phase transition | 1771 K | 1771 | L + α ↔ L; _alloy: Al 0.505, Ti 0.495_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 89; `ORC-5CK7QEFUA2` |  |
| Phase transition | 1772 K | 1772 | L + α ↔ L + β; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 68; `ORC-W4VW6ND7MX` |  |
| Phase transition | 1775 K | 1775 | L + β ↔ L; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 50; `ORC-EENBDXDEJR` |  |
| Phase transition | 1775.5 K | 1775.5 | L + β ↔ L; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 76; `ORC-4DIQDF3ACW` |  |
| Phase transition | 1783 K | 1783 | L + β ↔ L; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 51; `ORC-4C6PRTSQAD` |  |
| Phase transition | 1783 K | 1783 | L + β ↔ L; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 73; `ORC-THNQS2SBL2` |  |
| Phase transition | 1786 K | 1786 | L + β ↔ L; _alloy: Al 0.475, Ti 0.525_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 53; `ORC-VRKMGECKYD` |  |
| Phase transition | 1788 K | 1788 | L + β ↔ L; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 74; `ORC-VPRBIO4MZG` |  |
| Phase transition | 1788 K | 1788 | γ + α ↔ α; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 60; `ORC-RI4WAZFAUQ` |  |
| Phase transition | 1789.5 K | 1789.5 | L + β ↔ L; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 52; `ORC-45WELYUK72` |  |
| Phase transition | 1793 K | 1793 | L + β ↔ L; _alloy: Al 0.49, Ti 0.51_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 72; `ORC-NEIEZMU4MT` |  |
| Phase transition | 1796 K | 1796 | L + β ↔ L; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 49; `ORC-ZQKIBXUGTA` |  |
| Phase transition | 1800 K | 1800 | L + β ↔ L; _alloy: Al 0.475, Ti 0.525_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 48; `ORC-GQBJ543TQU` |  |
| Phase transition | 1939 K | 1939 | β ↔ L + β; _alloy: Al 0.225, Ti 0.775_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 21; `ORC-N5PHVP2TWR` |  |
| Phase transition | 1940 K | 1940 | β ↔ L + β; _alloy: Al 0.225, Ti 0.775_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 19; `ORC-E5CVUWV6JR` |  |
| Phase transition | 1940 K | 1940 | β ↔ L + β; _alloy: Al 0.225, Ti 0.775_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 20; `ORC-QXW3PEU3YK` |  |
| Phase transition | 1944 K | 1944 | L + β ↔ L; _alloy: Al 0.225, Ti 0.775_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 25; `ORC-AC2XHJYZDH` |  |
| Phase transition | 1948 K | 1948 | L + β ↔ L; _alloy: Al 0.225, Ti 0.775_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 23; `ORC-E2INJFGN6L` |  |
| Phase transition | 1951.5 K | 1951.5 | L + β ↔ L; _alloy: Al 0.225, Ti 0.775_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 24; `ORC-6GGLWGVXRB` |  |
| Phase transition | 1955 K | 1955 | L + β ↔ L; _alloy: Al 0.225, Ti 0.775_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 22; `ORC-53N6RUOYLT` |  |
| Phase transition | 1962 K | 1962 | β ↔ L; _alloy: Al 0.1, Ti 0.9_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 5; `ORC-K4Q6CIJL4T` |  |
| Phase transition | 1962 K | 1962 | β ↔ L; _alloy: Al 0.1, Ti 0.9_ | experimental | [1] Witusiewicz 2008 | Table 2, p. 3, row 6; `ORC-VQX4ZTPFHU` |  |
| Phase transition | 1963 K | 1963 | β ↔ L; _alloy: Al 0.1, Ti 0.9_ | model | [1] Witusiewicz 2008 | Table 2, p. 3, row 7; `ORC-DGWSJQ2UOP` |  |
| Phase transition | 1966.75 K | 1966.75 | L -> β-Ti | model | [4] Liang 2024 | Table 3, p. 8, row 1; `ORC-VW6ZXB42L4` |  |
| Phase transition | 1989 K | 1989 | congruent melting: bcc-A2 -> liquid; _bcc-A2: Ti 0.788; L: Ti 0.788_ | model | [2] (ed.) 1998 | Table I, p. 109, row 10; `ORC-UR622Z4URC` |  |

### Phase equilibrium (18)

Table: Phase equilibrium, Al–Ti system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Phase assemblage |  | 1008 | ε(l); _alloy: Al 0.75_ | experimental | [1] Witusiewicz 2008; _cites Braun 1999_ | p. 8; `ORC-654PWW6AJ5.8ba5e9` | “In order to fulfil Gibbs phase rule, the occurrence of the low temperature modification ␧(l) below the transition temperature reported by Braun and Ellner \[15-17\] ∼1223 K for the Ti-rich phase boundary (74.5 at.% Al) and 1008 K for the Al-rich phase boundary (75 at.% Al), was modelled by two invariant reactions, i.e. peritectoid ␩ + ␧(h) ↔ ␧(l) and metatectic ␧(h) ↔ ␧(l) + L, respectively (see al…” |
| Phase assemblage |  | 1223 | ε(l); _alloy: Al 0.745_ | experimental | [1] Witusiewicz 2008; _cites Braun 1999_ | p. 8; `ORC-654PWW6AJ5.c5669c` | “In order to fulfil Gibbs phase rule, the occurrence of the low temperature modification ␧(l) below the transition temperature reported by Braun and Ellner \[15-17\] ∼1223 K for the Ti-rich phase boundary (74.5 at.% Al) and 1008 K for the Al-rich phase boundary (75 at.% Al), was modelled by two invariant reactions, i.e. peritectoid ␩ + ␧(h) ↔ ␧(l) and metatectic ␧(h) ↔ ␧(l) + L, respectively (see al…” |
| Phase composition |  | 1273.15 | α2 + γ; _α2: Al 0.374, Ti 0.626; γ: Al 0.473, Ti 0.527_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 6; `ORC-GQTEO3VWTO` |  |
| Phase composition |  | 1373.15 | α + α2; _α: Al 0.235, Ti 0.765; α2: Al 0.248, Ti 0.752_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 14; `ORC-SKLHHUCE6E` |  |
| Phase composition |  | 1373.15 | α + β; _α: Al 0.198, Ti 0.802; β: Al 0.188, Ti 0.812_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 12; `ORC-3W2NSQGQSU` |  |
| Phase composition |  | 1373.15 | α2 + γ; _α2: Al 0.391, Ti 0.609; γ: Al 0.472, Ti 0.528_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 5; `ORC-57SCNPI5P2` |  |
| Phase composition |  | 1423.15 | α + α2; _α: Al 0.259, Ti 0.741; α2: Al 0.266, Ti 0.734_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 13; `ORC-LOWYKDU2HV` |  |
| Phase composition |  | 1423.15 | α + β; _α: Al 0.244, Ti 0.756; β: Al 0.238, Ti 0.762_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 11; `ORC-7Z7L22PNKH` |  |
| Phase composition |  | 1423.15 | α + γ; _α: Al 0.398, Ti 0.602; γ: Al 0.47, Ti 0.53_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 4; `ORC-K3PVTICEZJ` |  |
| Phase composition |  | 1473.15 | α; _α: Al 0.402, Ti 0.598_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 16; `ORC-HMXSAHU57Y` |  |
| Phase composition |  | 1473.15 | α + β; _α: Al 0.331, Ti 0.669; β: Al 0.325, Ti 0.675_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 10; `ORC-WPKWNDHCSA` |  |
| Phase composition |  | 1473.15 | α + γ; _α: Al 0.414, Ti 0.586; γ: Al 0.476, Ti 0.524_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 3; `ORC-ZGUIJXRWH5` |  |
| Phase composition |  | 1493.15 | α + β; _α: Al 0.349, Ti 0.651; β: Al 0.343, Ti 0.657_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 9; `ORC-5VAUUB6L4V` |  |
| Phase composition |  | 1523.15 | α + β; _α: Al 0.375, Ti 0.625; β: Al 0.365, Ti 0.635_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 8; `ORC-QARHU4RSVX` |  |
| Phase composition |  | 1523.15 | α + γ; _α: Al 0.423, Ti 0.577; γ: Al 0.483, Ti 0.517_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 2; `ORC-554GLI3LBH` |  |
| Phase composition |  | 1573.15 | α + β; _α: Al 0.394, Ti 0.606; β: Al 0.382, Ti 0.618_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 7; `ORC-V2YBHOKKOI` |  |
| Phase composition |  | 1573.15 | α + γ; _α: Al 0.44, Ti 0.56; γ: Al 0.493, Ti 0.507_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 1; `ORC-GJ2DUNSEFC` |  |
| Phase composition |  | 1573.15 | β; _β: Al 0.304, Ti 0.696_ | experimental | [5] Ohnuma 2000 | Table 1, p. 3, row 15; `ORC-CGDABWYAZJ` |  |

### Activity / EMF / Gibbs energy (2)

Table: Activity / EMF / Gibbs energy, Al–Ti system

| Property | Value | T (K) | Phases / composition | Class | Source | Location | Quote |
|---|---:|---:|---|---|---|---|---|
| Gibbs energy; _printed: difference in relative stabilities_ | 301 J/mol of atoms | 1673.15 |  | model | [3] Kattner 1992 | p. 9; `ORC-Y4JSXDQ5CA.ba7455` | “For example, at 50 at. pct A1 and 1400 ~ the difference in the relative stabilities between (flTi) and (aTi) is only 317 J/mol of atoms, and between (flTi) and TiAI, it is only 301 J/mol of atoms.” |
| Gibbs energy; _printed: difference in relative stabilities_ | 317 J/mol of atoms | 1673.15 |  | model | [3] Kattner 1992 | p. 9; `ORC-Y4JSXDQ5CA.f529c8` | “For example, at 50 at. pct A1 and 1400 ~ the difference in the relative stabilities between (flTi) and (aTi) is only 317 J/mol of atoms, and between (flTi) and TiAI, it is only 301 J/mol of atoms.” |

## Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

1. V.T. Witusiewicz, A.A. Bondar, U. Hecht, S. Rex, T.Ya. Velikanova, The Al–B–Nb–Ti system, Journal of Alloys and Compounds 465, 64-77 (2008). [doi:10.1016/j.jallcom.2007.10.061](https://doi.org/10.1016/j.jallcom.2007.10.061)
2. I. Ansara, A. T. Dinsdale, M. H. Rand (eds.), COST 507: Thermochemical database for light metal alloys, Volume 2, EUR 18499 EN, Office for Official Publications of the European Communities, Luxembourg (1998), ISBN 92-828-3902-8.
3. U. R. Kattner, J. -C. Lin, Y. A. Chang, Thermodynamic Assessment and Calculation of the Ti-Al System, Metall Trans A 23, 2081-2090 (1992). [doi:10.1007/bf02646001](https://doi.org/10.1007/bf02646001)
4. Zhi Liang, Ursula Kattner, Kamal Choudharry, Francesca Tavazza, Carelyn Campbell, Thermodynamic Assessments of Ti-Al, Ti-Fe, and Ti-Al-Fe Systems with Four-Sublattice Description of Ordered Body-Centered Cubic Phase and Density Functional Theory Data, J. Phase Equilib. Diffus. 45, 732-756 (2024). [doi:10.1007/s11669-024-01124-9](https://doi.org/10.1007/s11669-024-01124-9)
5. I Ohnuma, Y Fujita, H Mitsui, K Ishikawa, R Kainuma, K Ishida, Phase equilibria in the Ti–Al binary system, Acta Materialia 48, 3113-3123 (2000). [doi:10.1016/s1359-6454(00)00118-x](https://doi.org/10.1016/s1359-6454%2800%2900118-x)

## Please cite

- R. Arróyave, J. Saal, D. Shin, ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23735569
- R. Arróyave, J. Saal, D. Shin, ORCHID-Diagrams: calculated binary phase diagrams (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735859
- R. Arróyave, J. Saal, D. Shin, ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD) (version 2026.10), Zenodo (2026). https://doi.org/10.5281/zenodo.23735891
- R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). https://doi.org/10.5281/zenodo.23736065

Also cite the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work); B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0).

Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

```bibtex
@misc{orchid_literature_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Values: thermodynamic and phase-equilibrium values read from the literature}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735569},
  url       = {https://doi.org/10.5281/zenodo.23735569},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_phase_diagrams_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Diagrams: calculated binary phase diagrams}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735859},
  url       = {https://doi.org/10.5281/zenodo.23735859}
}

@misc{orchid_hulls_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Hulls: binary convex hulls (Materials Project, OQMD, assessed CALPHAD)}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735891},
  url       = {https://doi.org/10.5281/zenodo.23735891}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}
```

---

Derived data CC BY 4.0 ([licence](https://creativecommons.org/licenses/by/4.0/)): cite ORCHID ([CITATION.cff](https://data.orchid-project.org/CITATION.cff)) and the original sources. Quotes are short excerpts kept so that each value can be checked; they remain under the publishers' copyright and are not relicensed. Source papers, page images and full text are not redistributed. Field reference: [SCHEMA.md](https://data.orchid-project.org/literature/SCHEMA.md). Machine-readable guide: [llms.txt](https://data.orchid-project.org/llms.txt). Found an error? The report link of a value (Markdown: its id, ORC-..., in the Location column) opens a pre-filled GitHub issue, https://github.com/orchid-calphad/orchid-data/issues/new?template=report-value-error.yml&record_id=\<id>, carrying only the record id, source and value; [how to contribute](https://orchid-project.org/contribute/).